LM LiftMath

strength

Incline Bench 1RM Calculator

Calculate an incline bench estimate and convert it into weekly loading targets.

6 formulas
lb/kg
No signup

Use the same bench angle you train with most often.

Estimated 1RM

262.5 lb
Incline Bench using Epley

Epley

262.5 lb

Brzycki

253.2 lb

Lombardi

264.3 lb

O'Conner

253.1 lb

Mayhew

267.8 lb

Wathan

262.3 lb

PercentLoadRepsPurpose
100%262.5 lb1Max strength
95%250 lb2Max strength
90%237.5 lb3-4Max strength
85%222.5 lb5-6Strength
80%210 lb7-8Strength
75%197.5 lb9-10Hypertrophy
70%185 lb11-12Hypertrophy
65%170 lb13-15Technique or endurance
60%157.5 lbAMRAPGeneral work
55%145 lbAMRAPGeneral work
50%132.5 lbAMRAPGeneral work

How the 1RM estimate works

The calculator runs Epley, Brzycki, Lombardi, O'Conner, Mayhew, and Wathan formulas. For most barbell lifts, sets of 2-8 reps are more useful than high-rep sets because fatigue and conditioning distort the estimate.

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Training guides

Questions lifters ask

How should I use the Incline Bench 1RM Calculator? +

Enter a recent hard set with clean reps. The result is best used as a training max input, not as proof that you can hit the number today.

What rep range is best for estimating 1RM? +

Two to eight reps is the useful range for most lifters. Above 10 reps the estimate becomes more sensitive to conditioning, pacing, and technique breakdown.

Should I round the percentage table? +

Yes. Round to plates you can actually load. The calculator uses practical plate increments for pounds and kilograms.