Reps-to-one-rep-max estimate

Squat Max Calculator

Estimate your squat 1RM, training max, working loads and rep targets — all in your browser.

Lifted weight 100 kg

Repetitions 5 reps

STEP 01🏋️

Enter your set

Add the weight you squatted and how many clean reps you completed.

STEP 02🧮

Compare formulas

The tool blends Epley, Brzycki, Lombardi, O’Conner and Wathan estimates.

STEP 03📈

Use training loads

Get 90% training max plus working weights for strength, volume and deload days.

Estimated 1RM

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Enter set data

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Training Max

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90% of 1RM

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Rep Accuracy

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Based on reps

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5RM Estimate

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strength set

10RM Estimate

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volume set

Squat Set Inputs

Calculator Mode

Lifted Weight 100 kg

Number of Repetitions 5 reps

Added weight

Repetitions

reps

Formulas used: Epley, Brzycki, Lombardi, O’Conner and Wathan. The headline 1RM is their average, with direct 1-rep sets kept as the entered weight.

Squat Max Gauge

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Hit Calculate to see your result

Strength Metrics

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Metrics appear after calculation

✦ Result Explainer

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Insights appear here

▣ 7-Day Squat Plan

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Your plan appears after calculation

◎ What If Simulator

See how adding reps or weight changes your projected squat max.

Target weight 105 kg

Target reps 5 reps

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Enter your set data first

● Ask About Your Result

Hi! Ask me about your squat 1RM, training max, rep ranges, or next steps.

Frequently Asked Questions

It calculates multiple common one-rep max formulas, including Epley, Brzycki, Lombardi, O’Conner and Wathan, then averages them for a balanced estimate. A true one-rep set is shown as the entered weight.

Estimates are usually most useful from about 2–8 clean reps. Higher-rep sets depend more on conditioning and fatigue tolerance, so the tool marks them with lower confidence.

Not automatically. Treat the result as a planning number. For heavy singles, use warm-up jumps, safety pins or spotters, good technique, and stop if form breaks down.

AI-Generated Content Disclaimer

Insights and recommendations are algorithmically generated for informational purposes only and do not replace coaching, medical advice or safe lifting supervision. Heavy squats carry injury risk. Use appropriate equipment, technique and professional guidance when needed.

Squat Max Calculator — Estimate 1RM

Squat Max Calculator