1. What is 1RM?

1RM (One Repetition Maximum) is the maximum amount of weight you can lift for a single repetition of a given exercise. It's a common measure of strength in weight training.

2. How Does the Calculator Work?

The calculator uses the Epley formula:

Where:

• \( Weight \) — The amount of weight lifted
• \( Reps \) — Number of repetitions performed

Explanation: This formula estimates your maximum strength based on how much weight you can lift for multiple repetitions.

3. Importance of 1RM Calculation

Details: Knowing your 1RM helps in designing effective training programs, tracking progress, and setting appropriate weight percentages for different training goals.

4. Using the Calculator

Tips: Enter the weight you lifted, the number of reps you performed, and select the unit (kg or lbs). Optionally, you can enter a price per unit to calculate the equivalent value in USD.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the 1RM estimation?
A: The formula provides a good estimate but may vary by ±5-10% depending on the individual and exercise.

Q2: What's the maximum reps I should use for calculation?
A: For best accuracy, use reps between 1-10. The formula becomes less reliable with higher rep counts.

Q3: Can I use this for all exercises?
A: It works best for compound lifts like squats, bench press, and deadlifts. Use with caution for isolation exercises.

Q4: Why would I convert to USD value?
A: Some training programs use monetary value as motivation or to quantify strength in different terms.

Q5: Should I test my actual 1RM?
A: Direct testing is more accurate but carries higher injury risk. Use estimation for regular tracking and reserve actual 1RM tests for occasional check-ins.