Fitness Goal 4U

Push-Up Test
Calculator

Assess your push-up performance based on completed repetitions and test duration. Get a clear, easy-to-understand result using a transparent calculation method.

Basic Push-Up Test Calculator
Transparent FormulasMetric and ImperialCalculated Locally

Push-Up Test Performance

Free Calculator
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Up
Completed Repetitions30 reps
Test Minutes1 min
Additional Seconds30 sec
Push-Up Test Result ExplainedNo Black Boxes
Updated 12 Aug 2026Free Push-Up Test Calculator

Strength Training calculator

1RM Calculator

Estimate one-repetition maximum from a technically sound submaximal set and compare Epley and Brzycki predictions.

Method reviewedUpdated 12 Aug 2026

Calculate with 1RM Calculator

Inputs are checked before calculation

Your result will appear here

Complete the fields and calculate. Your inputs stay on this device.

Purpose and context

What does the 1RM Calculator do?

A repetition-based 1RM estimate can support programming without requiring a true maximal attempt. Prediction error increases with fatigue, technique variation and high repetition counts.

Who it supports: Adults performing technically valid resistance-training sets.

Transparent calculation

Formula and calculation method

Epley: 1RM = load × (1 + reps ÷ 30); Brzycki: 1RM = load × 36 ÷ (37 − reps)

Both equations use the entered load and repetitions. The selected result is shown with formula comparison and percentage-based training loads.

Primary keyword1RM calculator
Result typeCalculator-specific result
Published
Last reviewed

Worked calculation example

Using Epley, 100 kg for 6 reps gives 100 × (1 + 6/30) = 120 kg estimated 1RM.

The live calculator retains greater internal precision and rounds only when presenting the result.

How to use the 1RM Calculator

  1. Enter the weight lifted and completed repetitions.
  2. Choose Epley, Brzycki or their average.
  3. Calculate and use the percentage table as programming context.

Understanding your result

The result card identifies the value, unit, method, supporting values and an accuracy notice. Estimated and predicted outputs are labelled so that apparent precision is not mistaken for certainty.

Continue with the Squat 1RM Calculator for a related measurement using its own documented method.

Accuracy, assumptions and limitations

Predictions vary by exercise, training status, effort and repetition count; sets above 10 repetitions are less reliable.

Common input and interpretation mistakes

  • Entering warm-up repetitions that were not near maximal effort.
  • Using more than 10–15 repetitions for a precise prediction.
  • Treating estimated 1RM as a required maximal attempt.

Primary method source: https://pubmed.ncbi.nlm.nih.gov/15320682/.

Fitness Goal 4U provides general informational calculations and does not replace medical assessment, diagnosis, treatment or individualized advice from an appropriately qualified professional.

Frequently asked questions about 1RM Calculator

Epley and Brzycki are both recognized predictions. Their difference helps show equation uncertainty.

Prediction equations generally become less stable as the repetition count rises.

The estimate is a programming reference, not an instruction to test it without appropriate technique, equipment and supervision.

They translate the estimate into common relative loads while keeping the original estimate visible.

Related calculators

These tools are connected by calculation purpose, inputs or the next question users commonly ask.

Squat 1RM CalculatorEstimate squat one-repetition maximum from a controlled set and view squat-specific training percentages. Bench Press 1RM CalculatorEstimate bench press one-repetition maximum from a controlled set and compare two recognized prediction equations. Deadlift 1RM CalculatorEstimate deadlift one-repetition maximum from a technically valid set and view percentage-based reference loads. Training Max CalculatorCalculate a programming reference from an actual or estimated 1RM and a selected percentage.