MaxRep: 1RM Calculator

Never guess your one rep max again. Epley-backed estimate, plates loaded, warmups planned — all in one app.

Epley formula, real timeThe gold-standard 1RM estimator coaches and sports scientists use. Result updates as you type.

Visual plate loaderSee exactly which plates to put on the bar for any target weight. Custom inventory per gym.

Percentage table40–100% training loads for any 1RM, with plate loading per row. Toggle between true 1RM and 85% / 90% training max.

RPE & warmup rampsConvert RPE to percentage instantly. Generate progressive warmup sets calibrated to today's working weight.

Strength standardsSee where you rank from Beginner to Elite by bodyweight and gender for Bench, Squat, Deadlift, and OHP.

Real 5/3/1 cyclesEnter your training maxes, get a full 4-week Wendler block. Log AMRAP reps, the app advances the cycle.

What you get

A complete computation layer for strength training — calculator, plates, warmups, RPE, standards, and programming.

1RM Calculator Free

Epley formula, instant result, any lift

Plate Calculator Free

Visual loader for any target weight

Percentage Table Free

40–100% loads with plate breakdown per row

Exercise Library Free

20 preset lifts plus unlimited custom entries

lbs / kg toggle Free

Set once, applied everywhere

RPE / RIR Table Pro

Tuchscherer chart — RPE to %1RM in one tap

Warmup Generator Pro

Progressive ramp calibrated to today's working weight

Strength Standards Pro

Beginner to Elite by bodyweight and gender

Backoff Calculator Pro

Follow-up volume from your top set, plates included

Unlimited History Pro

Per-exercise line chart, day over day

Custom Gym Inventory Pro

Configure bars, plates, and collars per gym

Home Screen Widget Pro

Latest 1RMs, always current

5/3/1 Cycle Generator Coach

Full Wendler block with weights and plate loading

Advance Cycle Coach

Log AMRAP reps, app applies "5+ adds weight" per lift

Fatigue Detection Coach

Trend analysis flags declining lifts and suggests deloads

Meet Attempt Calculator Coach

Opener / second / third with plate calls for the platform

Multiple Gym Profiles Coach

Save inventories for home, commercial, competition

PDF Export Coach

Training history or meet attempt card, printable

Free

$0

No account, no ads

Epley 1RM, plate calculator,
percentage table,
exercise library, lbs / kg

Pro

$9.99

One-time. Yours forever.

RPE table, warmup ramps,
strength standards, backoff,
unlimited history, widget

Coach

$19.99 / yr

or $39.99 lifetime

Everything in Pro, plus 5/3/1
cycle generator, fatigue alerts,
meet attempts, PDF export

Last updated: May 2, 2026

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