Estimate your conventional deadlift from a trap bar (hex bar) lift — or vice versa — using research-backed advantage ranges and practical coaching guidance.
Enter your lift and settings to estimate the equivalent in the other bar style.
Unit
Direction
Estimate your conventional deadlift from a trap bar lift.
Weight lifted (kg)
Reps (blank = 1RM)
Handle height
Similar range of motion to conventional. ~5-10% advantage.
Experience
Trap bar weight (kg)
Enter your lift details
Choose direction, enter weight and reps, then press Calculate to see your estimated conversion.
Biomechanics
The hex bar changes your body position relative to the load, creating a mechanical advantage.
In a conventional deadlift, the barbell sits in front of your body, creating a long moment arm at the hip and spine. The trap bar surrounds you, placing the load closer to your center of mass. This allows a more upright torso, reduces lower back demand, and shifts more work to the quadriceps [1].
Swinton et al. (2011) found that trained lifters could pull approximately 8.4% more with a hex bar at low handles compared to a straight bar. Peak force, peak velocity, and peak power were all significantly higher with the hex bar [3].
Select whether you're converting from trap bar to conventional or the other way around.
Input the weight you lifted and the number of reps. For multi-rep sets, we estimate 1RM using the Epley formula.
Low handles approximate conventional ROM; high handles shorten the pull. This significantly affects the conversion range.
Handle height
Handle height is the single biggest factor in the trap bar advantage.
| Handle | Experience | Low est. | Midpoint | High est. |
|---|---|---|---|---|
| Low | beginner | +5% | +8% | +12% |
| intermediate | +5% | +8% | +10% | |
| advanced | +4% | +7% | +10% | |
| High | beginner | +8% | +12% | +15% |
| intermediate | +8% | +11% | +15% | |
| advanced | +7% | +10% | +13% |
Percentages represent how much more a lifter can typically pull with a trap bar compared to conventional. Based on Swinton et al. 2011 [1] and subsequent coaching data.
Low handles approximate the range of motion of a conventional deadlift. The main advantages are the neutral grip and center-of-mass positioning. Most research on trap bar deadlifts uses low handles, making this the most validated comparison [1].
High handles shorten the range of motion by 3-6 inches. This reduces the demand on the posterior chain and shifts more work to the quads. The reduced ROM typically adds 3-5% on top of the low-handle advantage, for a total of roughly 8-15% over conventional.
Equipment
Trap bars vary more in weight than straight barbells. Knowing your bar weight matters.
Standard Olympic barbells weigh 20 kg (44 lb), but trap bars range from 20 to 32 kg. Common models include 25 kg (Rogue TB-1), 27 kg (Rogue TB-2), and 30 kg for heavy-duty bars. Commercial gym trap bars often have no weight marking.
This converter includes a bar weight input so your total load calculation is accurate. If unsure, 25 kg / 55 lb is a reasonable default for most commercial trap bars.
FAQ
Common questions about converting between trap bar and conventional deadlift numbers.
Related tools
Pair this converter with your other deadlift calculators.
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References
Peer-reviewed studies underpinning the conversion ranges.
[1] A Biomechanical Analysis of Straight and Hexagonal Barbell Deadlifts Using Submaximal Loads
Swinton PA, Stewart A, Agouris I, Keogh JW, Lloyd R. J Strength Cond Res. 2011;25(7):2000-2009.
Primary source for trap bar vs conventional advantage (~8.4% in trained lifters at low handles).
[2] Essentials of Strength Training and Conditioning (4th ed.)
Haff GG, Triplett NT. Human Kinetics. 2016.
Textbook reference for exercise biomechanics, trap bar mechanics, and deadlift programming.
Camara KD, Coburn JW, Dunnick DD, Brown LE, et al. J Strength Cond Res. 2016;30(5):1183-1188.
Confirms greater peak force, velocity, and power with hex bar deadlift vs conventional.