One Rep Max (1RM) Calculator

Weight Lifted (kg): Number of Reps: Calculate 1RM

Percentage of 1RM

Percentage	Reps
100%	1
95%	2
90%	3
85%	5
80%	8
75%	10

1RM Calculator: Easily estimate your maximum lift with our tool! Input your weight lifted and reps, and unlock your potential today!

Features of 1RM Calculator

1. User Inputs:
   • Weight Lifted: The weight the user lifted during their exercise (in kg)
   • Number of Reps: The number of repetitions the user completed.
2. 1RM Calculation:
   • Uses the Epley formula: 1RM=weight×(1+reps30)\text{1RM} = \text{weight} \times \left(1 + \frac{\text{reps}}{30}\right)1RM=weight×(1+30reps​).
   • The formula estimates the maximum weight the user can lift for a single repetition based on the weight and number of reps performed.

How It Works:

1. The user inputs the weight they lifted and the number of repetitions.
2. When the "Calculate 1RM" button is pressed, the calculator computes the user's one-rep max using the Epley formula.
3. The result is displayed, giving the user an estimate of their 1RM.

This tool is useful for athletes and gym-goers to measure their strength and progress over time.