This tool helps you calculate your weekly lift goals based on the 531 strength training program.

## How to Use the 531 Calculator

To use the 531 calculator, you need to know your One-Rep Max (1RM) for a given lift. Follow these steps:

- Enter your One-Rep Max (1RM) in the input box.
- Select the training week from the dropdown menu.
- Click the Calculate button.
- The calculator will display the recommended weights and repetitions for that week.

## How It Calculates the Results

The 531 calculator uses the following formula to determine the recommended weights:

- Week 1: 65% x Training Max (TM) for 5 reps, 75% x TM for 5 reps, 85% x TM for 5+ reps
- Week 2: 70% x TM for 3 reps, 80% x TM for 3 reps, 90% x TM for 3+ reps
- Week 3: 75% x TM for 5 reps, 85% x TM for 3 reps, 95% x TM for 1+ reps
- Week 4: 40% x TM for 5 reps, 50% x TM for 5 reps, 60% x TM for 5 reps

Your Training Max (TM) is calculated as 90% of your One-Rep Max (1RM).

## Limitations of the Calculator

This calculator assumes you have an accurate One-Rep Max (1RM). Ensure you safely determine your 1RM beforehand. It does not account for individual differences in physiology or recovery capacity. Always consult with a qualified coach or trainer for personalized advice.

## Use Cases for This Calculator

### Use Case 1: Addition

With the 531 calculator, you can easily add up numbers. Whether you’re calculating expenses, scores, or anything else, just input the numbers and hit the addition button to get the sum instantly.

### Use Case 2: Subtraction

Need to subtract values quickly? No problem! The 531 calculator lets you subtract numbers effortlessly. Just enter the values and hit the subtraction button to get the result right away.

### Use Case 3: Multiplication

When you have numbers to multiply, the 531 calculator is here to help. Input the values you want to multiply and press the multiplication button to get the product in an instant.

### Use Case 4: Division

Dividing numbers is a breeze with the 531 calculator. Simply input the dividend and divisor, then hit the division button to get the quotient promptly.

### Use Case 5: Percentage Calculation

Calculating percentages is made simple with the 531 calculator. Enter the percentage value and the number you want to calculate it against, then press the percentage button to find out the result effortlessly.

### Use Case 6: Exponential Calculation

If you need to raise a number to a power, the 531 calculator is your go-to tool. Input the base and exponent, then click the exponential button to get the result swiftly.

### Use Case 7: Square Root Calculation

Want to find the square root of a number? The 531 calculator has your back. Enter the number and click the square root button to get the square root value instantly.

### Use Case 8: Clearing the Calculator

If you’ve made a mistake or want to start fresh, simply hit the clear button on the 531 calculator to reset the values and calculations, allowing you to begin anew without any hassle.

### Use Case 9: Decimal Calculations

Whether you’re dealing with whole numbers or decimals, the 531 calculator accommodates both effortlessly. Perform calculations involving decimal points with precision and accuracy.

### Use Case 10: Memory Function

Need to store a number temporarily for calculations? The 531 calculator offers a memory function, allowing you to save a value for later use and retrieve it whenever needed, enhancing your computing experience.