How Much Does a Barbell Weigh? Olympic, Standard & Bench Press Bar Guide
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Most barbells weigh 45 lbs. Not all of them.
How much does a barbell weigh depends on the type. A standard men's Olympic barbell weighs 45 lbs (20 kg). A women's Olympic bar weighs 33 lbs (15 kg). Specialty bars like the EZ curl, trap bar, and safety squat bar all weigh differently.
If you have ever added up your plates and wondered why the math did not match the barbell weight you Googled, this guide is for you.
We are going to walk through every common barbell, what it weighs, how to identify what you have in your rack, how bench press bars fit into the picture, and how to calculate total load in every scenario.
Let's go.
Quick Answer: How Much Does Each Type of Barbell Weigh?
The short answer, in one table:
|
Barbell Type |
Weight (lbs) |
Weight (kg) |
Length |
Sleeve Size |
|
Men's Olympic Barbell |
45 lbs |
20 kg |
7 ft (84") |
2 in |
|
Women's Olympic Barbell |
33 lbs |
15 kg |
6.5 ft (79") |
2 in |
|
Junior Olympic Barbell |
22-33 lbs |
10-15 kg |
5-6 ft |
2 in |
|
Standard Barbell (1-inch) |
15-25 lbs |
7-11 kg |
5-6 ft |
1 in |
|
EZ Curl Bar |
15-25 lbs |
7-11 kg |
~4 ft |
2 in |
|
Trap Bar (Hex Bar) |
30-70 lbs |
14-32 kg |
~7 ft |
2 in |
|
Safety Squat Bar |
55-70 lbs |
25-32 kg |
7 ft |
2 in |
|
Deadlift Bar |
44-45 lbs |
20 kg |
7.5 ft (90") |
2 in |
|
Squat Bar |
55 lbs |
25 kg |
8 ft (96") |
2 in |
If you just needed the number, you have it. Keep reading for the details on each type, how to identify what you have, and the barbell weight math for home gyms.
Olympic Barbell (Standard Men's 45-lb Bar)
The Olympic barbell is what most people mean when they say “barbell.”
If you are pressing, squatting, or deadlifting with a bar in a home or commercial gym, you are almost certainly using a men's Olympic barbell.
Full specs:
• Weight: 45 lbs (20 kg)
• Length: 7 feet (84 inches)
• Shaft diameter: 28-32 mm (28 mm for Olympic weightlifting bars, 29-32 mm for powerlifting bars)
• Sleeve diameter: 2 inches (accepts Olympic weight plates)
• Sleeve length: 16.4 inches
• Knurling: Diamond pattern for grip, with or without center knurl
• Load capacity: 700-1,500 lbs depending on tensile strength (measured in PSI)
The 45-lb Olympic bar is the standard for:
• Powerlifting: bench press, squat, deadlift
• Olympic weightlifting: clean and jerk, snatch
• Bodybuilding: rows, overhead press, curls
• General strength training in every commercial gym worldwide
Women's Olympic Barbell (33-lb Bar / 15 kg)
The women's Olympic barbell is 33 lbs (15 kg). It is used in official women's Olympic weightlifting competition.
Full specs:
• Weight: 33 lbs (15 kg)
• Length: 6.5 feet (79 inches) - 6 inches shorter than the men's bar
• Shaft diameter: 25 mm - thinner than the men's bar, sized for smaller hands
• Sleeve diameter: 2 inches (same as men's - accepts Olympic plates)
• Knurling: Diamond, typically no center knurl
The women's bar is not just for women. It is a smart tool for:
• Lifters with smaller hands who find a 28-32 mm shaft hard to grip
• Junior athletes and teenagers building foundational strength
• Any lifter doing high-rep explosive work who benefits from a lighter bar
• Deloads or technique work where the goal is speed, not load
Junior and Training Barbells
Junior and training barbells are lighter versions used to teach form or introduce younger lifters to barbell training.
• Weight: 22-33 lbs (10-15 kg), with some training-only bars as light as 11 lbs
• Length: 5-6 feet
• Shaft diameter: 25-28 mm
• Sleeve diameter: 2 inches (Olympic plate compatible on most)
These are common in Olympic weightlifting clubs, high school programs, and rehab settings. Rarely found in commercial gyms.
Standard Barbell (Not Olympic) - The Confusion Point
This is where most confusion starts.
A “standard” barbell, sometimes called a “1-inch bar,” is different from an Olympic barbell. It is cheaper, lighter, and only accepts 1-inch weight plates instead of 2-inch Olympic plates.
Full specs:
• Weight: 15-25 lbs (typically closer to 15-20 lbs)
• Length: 5-6 feet
• Shaft diameter: 1 inch (25.4 mm) - same as sleeve
• Sleeve diameter: 1 inch - fits standard plates only, not Olympic plates
• Max load: 200-300 lbs (bar flexes at higher loads)
Standard barbells are common in:
• Older home gyms from the 1980s and 90s
• Big-box store fitness sets
• Hotel gyms
• Budget starter kits
If your bar has 1-inch plates that slide on and off with wingnut collars, you have a standard bar, not an Olympic bar.
If you are planning to lift seriously, avoid standard barbells. The max load is too low, plate selection is limited, and the bar itself flexes under moderate weight.
Specialty Barbells and Their Weights
Beyond the standard Olympic bar, specialty bars serve specific training purposes. Weights vary widely by design.
EZ Curl Bar (15-25 lbs / 7-11 kg)
The EZ curl bar has a W-shaped shaft designed to reduce wrist strain during curls and skull crushers.
• Weight: 15-25 lbs (Olympic version), 10-15 lbs (standard version)
• Length: About 4 feet
• Primary use: Biceps curls, tricep extensions, upright rows
• Who should own one: Anyone who trains arms directly and finds a straight bar hard on the wrists
Trap Bar / Hex Bar (30-70 lbs / 14-32 kg)
The trap bar (also called hex bar) is shaped like a hexagon. The lifter stands inside the bar and grips two handles at their sides.
• Weight: 30-70 lbs depending on brand and construction (most home models sit around 45-60 lbs)
• Length: About 7 feet
• Primary use: Deadlifts (safer on the lower back than a straight bar), shrugs, farmer carries
• Who should own one: Almost anyone. The trap bar deadlift is one of the safest and most productive full-body lifts available
Safety Squat Bar (55-70 lbs / 25-32 kg)
The safety squat bar has padded shoulder pads and forward-facing handles. It shifts load forward and allows squatting without holding the bar in a traditional back-squat grip.
• Weight: 55-70 lbs
• Length: 7 feet
• Primary use: Squat variations for lifters with shoulder mobility limitations, or for adding a challenge to an established squat
• Who should own one: Older lifters, athletes with shoulder issues, or advanced trainees looking to vary squat stimulus
Cambered Bar (60-85 lbs / 27-39 kg)
The cambered bar has a curved shaft with plates hanging below the level of the lifter's hands. The extra movement builds stability.
• Weight: 60-85 lbs
• Length: 7 feet
• Primary use: Advanced squat variations, good morning variations, box squats
• Who should own one: Advanced strength athletes only
Deadlift Bar (44-45 lbs / 20 kg)
The deadlift bar looks like a standard Olympic bar but is longer, thinner, and more flexible. The extra whip makes heavy deadlifts easier to break off the floor.
• Weight: 44-45 lbs (20 kg)
• Length: 7.5 feet (90 inches)
• Shaft diameter: 27 mm (thinner than a standard Olympic bar)
• Primary use: Deadlifts and rack pulls only
• Who should own one: Competitive powerlifters
Squat Bar (55 lbs / 25 kg)
The squat bar is longer, thicker, and stiffer than a standard Olympic bar. Built to handle heavy squat loads without excess whip.
• Weight: 55 lbs (25 kg)
• Length: 8 feet (96 inches)
• Shaft diameter: 32 mm (thicker than a standard Olympic bar)
• Primary use: Heavy squats
• Who should own one: Competitive powerlifters and advanced strength athletes
Is a Bench Press Bar Different From a Regular Barbell?
Short answer: No, not usually.
The bar you bench press with in a commercial gym is almost always a standard men's Olympic barbell. Same 45 lbs (20 kg). Same 7-foot length. Same 2-inch sleeves. It is not a special bench press bar.
Some gyms have dedicated “bench press bars” that are slightly stiffer (less whip) than a general-purpose bar and may have no center knurling for chest comfort. The weight is still 45 lbs.
Where things get confusing:
• Smith machine bars vary. Counterbalanced smith machines can have effective bar weights as low as 15-25 lbs. Non-counterbalanced smith machines use standard 35-45 lb bars. See our smith machine squat guide for full details.
• Fixed-weight bench press bars in some resistance machines can weigh 30-60 lbs depending on the manufacturer.
• Home bench press setups almost always use a standard 45-lb Olympic bar.
If someone asks how much does the bar on a bench press weigh, the answer is 45 lbs in 95 percent of cases.
How to Identify What Barbell You Have
Five ways to figure out what is sitting in your rack:
1. Measure the sleeve diameter
Grab a ruler. Measure the thick end of the bar where the plates load. If it is 2 inches (50 mm), you have an Olympic bar. If it is 1 inch (25 mm), you have a standard bar.
2. Check the length
A full-size men's Olympic bar is 7 feet long. Women's Olympic is 6.5 feet. Deadlift bars are 7.5 feet. Squat bars are 8 feet. Junior and standard bars are typically 5-6 feet.
3. Look for markings
Look for knurl marks (the smooth rings in the diamond-knurled section). IPF (International Powerlifting Federation) marks sit 32 inches apart. IWF (International Weightlifting Federation) marks sit 36 inches apart. Center knurling indicates a squat bar or general-purpose bar. No center knurling often indicates a dedicated bench press bar or a deadlift bar.
4. Weigh it
Put the bar on a bathroom scale. The number will not be perfectly accurate but will tell you whether you have a 45-lb bar, a 33-lb bar, or something lighter.
5. Look at the shape
Straight bar with 2-inch sleeves: Olympic bar. Straight bar with 1-inch sleeves: standard bar. W-shape: EZ curl bar. Hexagon that you stand inside: trap bar. Curved with pads at the shoulders: safety squat bar.
Barbell Weight Math: How to Calculate Loaded Weight
The formula is simple:
Total weight = Bar weight + (2 x plate weight per side)
Load is always symmetric. If you have two 45-lb plates on the left, you have two 45-lb plates on the right. So multiply one side by 2.
Example calculations:
• 45-lb bar with two 45-lb plates per side: 45 + (2 x 90) = 225 lbs
• 45-lb bar with four 45s plus one 25 per side: 45 + (2 x 205) = 455 lbs
• 33-lb bar with three 45s plus one 10 plus one 5 per side: 33 + (2 x 150) = 333 lbs
Quick reference for common loads:
|
Plates per side |
Total with 45-lb bar |
Total with 33-lb bar |
|
1 x 45 lb plate |
135 lbs |
123 lbs |
|
2 x 45 lb plates |
225 lbs |
213 lbs |
|
3 x 45 lb plates |
315 lbs |
303 lbs |
|
4 x 45 lb plates |
405 lbs |
393 lbs |
|
5 x 45 lb plates |
495 lbs |
483 lbs |
|
6 x 45 lb plates |
585 lbs |
573 lbs |
Note on lifter shorthand: when someone at the gym says “three plates,” they mean three 45-lb plates per side plus the 45-lb bar. Three plates = 315 lbs. Four plates = 405 lbs. Five plates = 495 lbs. This shorthand includes the bar.
Choosing the Right Barbell for Your Home Gym
The barbell is one of the most-used pieces of equipment in any strength setup. It also outlives most other gym equipment by decades if you buy right.
What to look for
• Tensile strength (PSI): The higher the PSI rating, the more weight the bar can hold and the longer it lasts. Look for 150,000 PSI minimum. Serious lifters want 190,000+. Premium bars hit 205,000+.
• Sleeve rotation: Bushings and bearings let the sleeves spin freely, protecting your wrists during dynamic lifts. Bearings are smoother than bushings. Higher-end bars have both.
• Knurling: The pattern cut into the bar for grip. Medium-depth diamond knurling is the standard for most lifters. Aggressive knurling grips better under heavy loads but can tear skin during high-volume work.
• Coating: Bare steel, black oxide, chrome, or stainless steel. Stainless steel is the best combination of grip, corrosion resistance, and durability. Also the most expensive.
• Load capacity: Match this to your training. 700 lbs is plenty for most home lifters. 1,000 lbs handles serious powerlifting. 1,500+ lbs is competition-grade.
Price expectations
Cheap standard barbells run $50-100 and will not last serious use. Entry-level Olympic bars start around $150. Mid-tier premium bars run $200-400. Competition-grade specialty bars can exceed $600.
BeFitNow's Barbell Lineup
BeFitNow builds barbells to the same commercial-grade philosophy as the rest of our catalog. Two current options:
Powerlifting Barbell (Sabertooth Bar)
Premium 7-foot Olympic barbell built from proprietary stainless steel. 205,000 PSI tensile strength. 1,000 lb weight capacity. 30 mm shaft diameter. Medium-depth diamond knurling. Swiveling sleeves for smooth rotation under load. This is the flagship bar and the one most home lifters end up choosing. Currently $199.99 CAD (sale from $239.99 CAD).
Same Olympic-standard construction as the Powerlifting Barbell, with custom color coating available in gold, blue, or red. 190,000 PSI tensile strength. 1,000 lb capacity. Designed for lifters who want their bar to stand out visually without sacrificing performance.
Both barbells ship with a lifetime warranty that has no fine print. Pads, cables, bearings, and moving components are all covered. No exclusions for normal use or high-traffic environments. Clear ownership terms.
Plus a 180-day return window and free shipping across Canada. Built and serviced from our Ontario facility at 6221 Highway 7, unit 4.
If you want to see one before you buy, BeFitNow runs live demos. Real bars, real weight, real conversations, no pressure.
Want more guides like this one, plus equipment breakdowns and flash sales we never post publicly? Join the BeFitNow list at the bottom of this article.
How Much Does a Barbell Weigh? FAQs
How much does a standard Olympic barbell weigh?
A standard men's Olympic barbell weighs 45 lbs (20 kg). It is 7 feet long with 2-inch sleeves for Olympic plates. This is the bar used in every commercial gym for bench press, squat, deadlift, and overhead press.
How much does a women's barbell weigh?
A women's Olympic barbell weighs 33 lbs (15 kg). It is 6.5 feet long with a thinner 25 mm shaft designed for smaller hands. Sleeves are 2 inches (accepts Olympic plates), same as the men's bar.
How much does a bench press bar weigh?
The bar on a bench press is almost always a standard Olympic barbell weighing 45 lbs (20 kg). Some gyms have dedicated bench press bars that are slightly stiffer or have no center knurling, but the weight is still 45 lbs.
How much does the bar on a bench press weigh at most commercial gyms?
45 lbs (20 kg). This applies to almost every commercial gym in North America and worldwide, including Planet Fitness, Gold's Gym, LA Fitness, and Anytime Fitness. If the bar has 2-inch sleeves and is 7 feet long, it is a 45-lb Olympic bar.
How heavy is a barbell in kg?
A men's Olympic barbell is 20 kg. A women's Olympic barbell is 15 kg. Standard non-Olympic barbells range from 7-11 kg. Specialty bars vary from 10 kg (junior training) up to 39 kg (cambered bar).
Are all Olympic barbells the same weight?
No. Men's Olympic bars are 20 kg (45 lbs). Women's Olympic bars are 15 kg (33 lbs). Junior Olympic bars are 10 kg (22 lbs) or 15 kg (33 lbs). All have 2-inch sleeves but the shaft and length differ.
What is the difference between a 20 kg and 15 kg bar?
The 20 kg (45 lb) bar is the men's Olympic standard: 7 feet long, 28-32 mm shaft diameter. The 15 kg (33 lb) bar is the women's Olympic standard: 6.5 feet long, 25 mm shaft. Both have 2-inch sleeves and accept the same Olympic plates.
How much does a curl bar (EZ bar) weigh?
An Olympic EZ curl bar (2-inch sleeves) weighs 15-25 lbs. Standard EZ curl bars (1-inch sleeves) weigh 10-15 lbs. Length is around 4 feet on both.
How much does a trap bar (hex bar) weigh?
Trap bars vary widely by brand. Most home trap bars weigh 30-60 lbs. Commercial competition trap bars can weigh up to 70 lbs. Check the manufacturer specs before you log your numbers.
How much does a Smith machine bar weigh?
Depends on the machine. Counterbalanced Smith machine bars have an effective starting weight of 15-25 lbs. Non-counterbalanced Smith machines (the commercial gym standard) use bars that weigh 35-45 lbs. See our full smith machine squat guide for details.
How do I know if my barbell is Olympic or standard?
Measure the sleeve diameter. Olympic bars have 2-inch sleeves. Standard bars have 1-inch sleeves. Olympic bars are also longer (7 feet vs 5-6 feet for standard) and heavier (45 lbs vs 15-25 lbs).
Do all barbells come in kg or lbs?
Both. Barbells manufactured for the North American market are usually labeled in lbs. Barbells manufactured for the international or Olympic market are labeled in kg. A 20 kg bar is 44 lbs when converted, but is marketed as “45 lbs” in the US and Canada for simplicity.
What is a 45 lb bar in kg?
A 45-lb barbell is actually 20 kg, which converts to 44.09 lbs. The bar is manufactured to a 20 kg specification and marketed as 45 lbs in North America. Close enough for training purposes.
How much weight can an Olympic barbell hold?
Depends on the tensile strength (PSI rating) of the bar. Entry-level Olympic bars handle 500-700 lbs. Mid-tier bars handle 800-1,000 lbs. Premium powerlifting bars can hold 1,500 lbs or more. Any bar that goes past its rated capacity will bend permanently.
Do I need a 7-foot barbell for my home gym?
If you have a full-size power rack or squat stand, yes. Standard 7-foot bars are designed to fit racks with the inside width around 40-48 inches. If you are training with a smaller rack or in a tight space, a 6-foot or 6.5-foot bar may fit better, but you sacrifice some plate loading room and durability.
The Bottom Line
How much does a barbell weigh? Most of the time, 45 lbs. If you know that number, you know most of what you need to know for a normal training session.
But specialty bars, women's bars, junior bars, and non-Olympic standard bars all weigh differently. Knowing what you have in your rack lets you calculate load accurately, program properly, and buy the right equipment when it is time to upgrade.
BeFitNow's Powerlifting Barbell is built from 205,000 PSI stainless steel, holds 1,000 lbs, and ships with a lifetime warranty with no fine print. It is trusted by 455 verified Canadian customers, averaging 4.7 stars on BirdEye, and ships from Ontario.
Questions about which bar fits your training? Reply to any of our emails at sales@befitnow.ca, call our team at 705-710-3502, or book a live demo. We pick up.
Train serious.
Want more guides like this one, plus equipment breakdowns and flash sales we never post anywhere else? Join the BeFitNow list.