When people start lifting weights, one common question always appears how much does the bar weigh?
This question sounds simple, yet it matters a lot. Every time you lift, the bar itself adds weight to your total load. Knowing the bar’s actual weight ensures you train safely and track progress accurately. This guide explains every type of bar, their exact weights, what affects them, and how you can measure your own.
Why the Bar’s Weight Matters
The bar is not just a holder for plates it’s part of the total load. If you lift 100 kg including a 20 kg bar, you’re truly lifting 80 kg of plates + 20 kg of steel. Ignoring that difference can lead to inconsistent records and wrong calculations during training cycles. Professional lifters, powerlifters, and even home gym users note the bar’s weight before every workout. It keeps performance data honest and reduces injury risk by preventing sudden jumps in total weight.
Standard Bar Weights Overview
| Bar Type | Average Weight | Weight Range | Common Use |
|---|---|---|---|
| Men’s Olympic Bar | 20 kg (44 lb) | 20–21 kg | Powerlifting, weightlifting |
| Women’s Olympic Bar | 15 kg (33 lb) | 15–16 kg | Weightlifting, CrossFit |
| Standard 1-inch Bar | 6–10 kg (13–22 lb) | 5–12 kg | Home workouts |
| EZ-Curl Bar | 10–12 kg (22–26 lb) | 7–18 kg | Arm isolation exercises |
| Trap / Hex Bar | 25 kg (55 lb) | 20–35 kg | Deadlifts, shrugs |
| Safety-Squat Bar | 30 kg (66 lb) | 27–35 kg | Squats, good mornings |
| Smith Machine Bar | ~7–11 kg (15–25 lb) | 5–20 kg | Guided lifts |
| Technique / Training Bar | 5–10 kg (11–22 lb) | 4–12 kg | Form training, beginners |
1. Olympic Bars
Men’s Olympic Bar
The men’s Olympic bar weighs 20 kg (44 lb). It is 2.2 m (7.2 ft) long with a 28 mm shaft diameter. The sleeve diameter is 50 mm to fit Olympic plates. This bar is used in official competitions governed by the International Weightlifting Federation (IWF) and International Powerlifting Federation (IPF). It supports heavy lifts like snatch, clean and jerk, squat, bench press, and deadlift.
Women’s Olympic Bar
The women’s Olympic bar weighs 15 kg (33 lb) and measures around 2.01 m (6.6 ft). The shaft diameter is 25 mm, making it easier to grip for smaller hands. Despite being lighter, it is built with the same quality steel and whip (flexibility) as the men’s version.
2. Standard (1-inch) Bars
Standard bars are common in home gyms. They are lighter and shorter than Olympic bars, usually 5 to 7 ft long and 13–22 lb in weight. The sleeve diameter is 1 inch, designed for standard plates with smaller holes. These bars are suitable for casual training and low-to-moderate weight ranges.
Important: Standard bars are not meant for heavy deadlifts or Olympic lifts they can bend under high loads.
3. EZ-Curl Bars
The EZ-curl bar is designed with bends in the shaft to reduce wrist stress during curls and extensions.
Most EZ-bars weigh 10–12 kg (22–26 lb), though some commercial gym bars can reach 18 kg (40 lb).
Chrome-plated or steel-coated models are standard in gyms.
Common exercises:
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Bicep curls
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Skull crushers
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Reverse curls
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Close-grip presses
This bar allows a neutral wrist angle that minimizes joint discomfort during high-rep arm training.

4. Trap or Hex Bars
Trap bars (also called hex bars) have a six-sided frame so you stand inside it during lifts. Their average weight is 25 kg (55 lb), but models vary from 20 kg to 35 kg. Heavy-duty versions made from thick steel can exceed 30 kg. They are perfect for deadlifts, shrugs, and farmer carries because they balance the load around your center of gravity. Many athletes prefer them for safer back mechanics and vertical lifting paths.
🧍 5. Safety-Squat Bars
Safety-squat bars (SSB) look different padded neck and shoulder rests with angled handles. A typical SSB weighs 27–30 kg (≈ 60–70 lb). They are thicker and heavier than Olympic bars due to extra padding and curves.
Benefits include:
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Better balance for squats
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Reduced shoulder strain
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Easier control during heavy sets
These bars are widely used in rehabilitation and advanced powerlifting programs.
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6. Smith Machine Bars
Smith machines use a bar fixed on vertical rails. Unlike free bars, they include counterbalance mechanisms that reduce real weight. The bar can weigh as little as 5 kg (11 lb) or as much as 20 kg (44 lb) depending on the model and manufacturer. To find the exact figure, check the machine’s specification label. Counterweights or pulleys often make the bar feel lighter than it actually is.
7. Technique or Training Bars
Technique bars are lighter versions for beginners and youth athletes. Most weigh 5–10 kg (11–22 lb) and are used to learn proper form before lifting heavy weights. They are typically made from aluminum or lighter steel and fit standard Olympic plates.
How to Know How Much Your Bar Weighs
Use these methods to confirm the real number:
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Check the engraving or tag: Many bars have “20 kg” or “15 kg” stamped near the collar.
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Look up the manufacturer online: The brand website lists model specifications.
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Use a scale: Place one end on the scale, balance it, and note the reading.
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Ask your gym staff: Most gyms know the specifications of each rack or machine bar.
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Weigh and record: Keep a note in your workout log for reference.
Plate Math Example
When you load the bar, always include it in your total.
| Equipment | Plates Added | Bar Weight | Total Load |
|---|---|---|---|
| Olympic bar | 2 × 20 kg | 20 kg | 60 kg |
| Women’s bar | 2 × 15 kg | 15 kg | 45 kg |
| Standard bar | 2 × 10 kg | 7 kg | 27 kg |
So, if you bench “60 kg,” you’re not just lifting two plates; the bar counts too!
Factors That Affect Bar Weight
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Material density: Stainless steel, alloy steel, and aluminum all weigh differently.
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Length and thickness: Longer and thicker bars add mass.
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Knurling depth: Deep knurling can remove or add minor grams.
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Sleeve design: Bearings, bushings, or collars influence total mass.
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Attachments: Counterbalance systems or safety pads modify perceived weight.
Understanding these variables helps you estimate the actual mass even if specs aren’t visible.
Expert Tips for Training Accuracy
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Record bar weight in every program sheet or app.
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Use consistent equipment across sessions to maintain data accuracy.
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Calibrate home scales yearly if you weigh bars yourself.
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Avoid mixing bar types mid-cycle unless recalculating loads.
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Inspect bar condition: Bent bars can misalign your lift and cause joint strain.
Most Common Bar Weights:
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Men’s Olympic bar: 20 kg (45 lb)
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Women’s Olympic bar: 15 kg (33 lb)
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Standard home bar: 6–10 kg (13–22 lb)
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EZ-curl bar: 10–12 kg (22–26 lb)
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Trap/Hex bar: 25 kg (55 lb)
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Smith machine bar: 7–11 kg (15–25 lb)
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Safety-squat bar: 30 kg (66 lb)
Checklist Before You Lift
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Confirm which bar you’re using.
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Count the bar’s weight in your total.
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Verify bar straightness and sleeve spin.
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Ensure collars are tight.
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Record load after every lift.
This simple checklist guarantees consistency and long-term progress tracking.
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Frequently Asked Questions (FAQs)
Q1: Are all gym bars 45 lb?
No. Only men’s Olympic bars usually weigh 45 lb. Women’s bars weigh 33 lb, and many specialty bars vary between 15 lb and 75 lb.
Q2: Why does the smith machine bar feel lighter?
Smith machines often use counterbalanced systems with pulleys that reduce the real weight you lift.
Q3: Can I weigh a barbell at home?
Yes. You can weigh it using a bathroom scale — weigh yourself, then yourself holding the bar, and subtract the difference.
Q4: What bar should a beginner use?
Beginners can start with a technique bar (5–10 kg) or a standard home bar (7 kg) to learn form safely.
Q5: Does bar weight affect strength gains?
Yes. Training with accurate total weight ensures progressive overload, which is essential for muscle and strength growth.
Q6: How do I know if a bar is Olympic?
Check for 2-inch sleeves and a total length of 7 ft. Olympic bars also rotate smoothly using bushings or bearings.
Q7: What is the heaviest type of bar?
Safety-squat and specialty power bars can weigh up to 75 lb (34 kg), heavier than the Olympic standard.
Conclusion
Understanding how much the bar weighs is a key part of strength training knowledge. Every bar type Olympic, standard, EZ, trap, or smith has a unique design and purpose. Knowing their correct weights helps you log workouts correctly, lift safely, and make steady progress.