5/3/1 Calculator

Calculate your training weights for Jim Wendler’s 5/3/1 program based on your One-Rep Max (1RM).

5/3/1 Weight Calculator

Results copied to clipboard!

What is the 5/3/1 Calculator?

The 5/3/1 calculator is a tool designed to help individuals following Jim Wendler’s 5/3/1 strength training program determine their working weights for each training session. The program is based on using a percentage of your one-rep max (1RM) to calculate a “Training Max” (TM), and then using percentages of that TM for your sets and reps over a 4-week cycle. This 5/3/1 calculator automates these calculations.

Jim Wendler’s 5/3/1 is a popular and effective strength training program focused on slow, steady, and sustainable progress in the main compound lifts: squat, bench press, deadlift, and overhead press. It emphasizes submaximal training to ensure consistent gains and reduce the risk of overtraining or injury.

Who Should Use the 5/3/1 Calculator?

This 5/3/1 calculator is ideal for:

• Individuals starting the 5/3/1 program.
• Lifters who want to quickly calculate their weights for each cycle.
• Anyone looking for a structured approach to strength progression.
• Intermediate to advanced lifters who understand their 1RM or can estimate it reliably.

Common Misconceptions

One common misconception is that 5/3/1 is only for powerlifters. While it’s popular in powerlifting, its principles of submaximal training and progressive overload are beneficial for anyone looking to get stronger. Another is that you always train heavy; while you hit a top set each week, much of the volume is submaximal, promoting recovery and form.

5/3/1 Calculator Formula and Mathematical Explanation

The core of the 5/3/1 program revolves around your Training Max (TM), which is typically set at 85-90% of your true One-Rep Max (1RM).

1. Calculate Training Max (TM):
   TM = 1RM * (Training Max Percentage / 100)
2. Calculate Weekly Weights: Each week, the weights for the three main sets are calculated as a percentage of the TM:
   • Week 1 (5/5/5+): Set 1 = TM * 0.65, Set 2 = TM * 0.75, Set 3 = TM * 0.85 (for 5+ reps)
   • Week 2 (3/3/3+): Set 1 = TM * 0.70, Set 2 = TM * 0.80, Set 3 = TM * 0.90 (for 3+ reps)
   • Week 3 (5/3/1+): Set 1 = TM * 0.75, Set 2 = TM * 0.85, Set 3 = TM * 0.95 (for 1+ reps)
   • Week 4 (Deload): Set 1 = TM * 0.40, Set 2 = TM * 0.50, Set 3 = TM * 0.60
3. Rounding: The calculated weights are typically rounded to the nearest 2.5 or 5 lbs/kg to make loading the barbell practical. Our 5/3/1 calculator rounds to the nearest 2.5.

Variables Table

Variables used in the 5/3/1 calculations.

Variable	Meaning	Unit	Typical Range
1RM	One-Rep Max: The maximum weight you can lift for one repetition.	lbs or kg	Varies greatly
Training Max %	The percentage of your 1RM used to calculate your Training Max.	%	85-90%
TM	Training Max: The base weight from which your working sets are calculated.	lbs or kg	85-90% of 1RM
Weekly %	The percentage of TM used for each set in a given week.	%	40-95%

Practical Examples (Real-World Use Cases)

Example 1: Bench Press

Sarah’s 1RM for the bench press is 150 lbs, and she uses a 90% Training Max percentage.

• 1RM: 150 lbs
• Training Max %: 90%
• Training Max (TM): 150 * 0.90 = 135 lbs

Using the 5/3/1 calculator with these inputs:

• Week 1 (85% set): 135 * 0.85 = 114.75 lbs, rounded to 115 lbs for 5+ reps.
• Week 2 (90% set): 135 * 0.90 = 121.5 lbs, rounded to 122.5 lbs for 3+ reps.
• Week 3 (95% set): 135 * 0.95 = 128.25 lbs, rounded to 127.5 lbs for 1+ rep.

Example 2: Deadlift

John’s 1RM for the deadlift is 405 lbs, and he uses an 85% Training Max percentage.

• 1RM: 405 lbs
• Training Max %: 85%
• Training Max (TM): 405 * 0.85 = 344.25 lbs, rounded to 345 lbs (as it’s close and easier to load). The 5/3/1 calculator would round to 345 after initial calculation of 344.25 and TM being used. Let’s say TM is 344.25 for calculation then round weights.
• Training Max (TM) precise: 344.25 lbs

Using the 5/3/1 calculator:

• Week 1 (85% set): 344.25 * 0.85 = 292.61 lbs, rounded to 292.5 lbs for 5+ reps.
• Week 2 (90% set): 344.25 * 0.90 = 309.82 lbs, rounded to 310 lbs for 3+ reps.
• Week 3 (95% set): 344.25 * 0.95 = 327.03 lbs, rounded to 327.5 lbs for 1+ rep.

How to Use This 5/3/1 Calculator

1. Enter Your 1RM: Input your current one-rep max for the lift you are planning the cycle for (e.g., Squat).
2. Set Training Max Percentage: Choose the percentage of your 1RM you want to use for your Training Max (90% is common, 85% is safer to start).
3. Select Weight Unit: Choose between lbs and kg.
4. Calculate: Click the “Calculate” button.
5. Review Results: The 5/3/1 calculator will display your Training Max and a table with the weights for each set for all four weeks of the cycle, rounded to the nearest 2.5 lbs/kg. The chart shows your top set weights for weeks 1-3.
6. Perform the “+ Set”: On the last set of weeks 1, 2, and 3, aim to perform as many reps as possible (AMRAP) with good form. This is crucial for gauging progress.
7. Progression: After completing a 4-week cycle, you typically add a small amount of weight (5 lbs to upper body lifts, 10 lbs to lower body lifts) to your 1RM, recalculate your TM, and start the next cycle.

Key Factors That Affect 5/3/1 Calculator Results and Program Success

• 1RM Accuracy: An accurate 1RM is crucial. If it’s too high, your TM will be too high, making the program too difficult. If too low, it might be too easy initially. It’s better to underestimate slightly. Our one rep max calculator can help estimate this.
• Training Max Percentage: Starting with 85-90% is recommended. A lower TM% allows for more reps on the “+” sets and smoother progress.
• Consistency: Adhering to the program consistently over multiple cycles is key to seeing results.
• “+ Set” Performance: The number of reps achieved on the AMRAP sets indicates how you are progressing and whether your TM is appropriate.
• Assistance Work: The 5/3/1 program includes assistance exercises after the main lift. The volume and type of assistance work can significantly impact recovery and progress.
• Deloads: Taking the deload week (Week 4) seriously is important for recovery and long-term progress, preventing burnout. Our deload week guide explains more.
• Nutrition and Recovery: Proper diet, sleep, and stress management are vital for recovering from workouts and getting stronger.
• Progression Rate: After each cycle, small increases to your 1RM (and thus TM) are made, ensuring gradual overload.

Frequently Asked Questions (FAQ)

What is the “+ set” in 5/3/1?

The “+ set” is the last main set in weeks 1, 2, and 3, where you perform the prescribed number of reps (5, 3, or 1) and then continue to do as many more reps as possible (AMRAP) with good form, stopping before failure or significant form breakdown.

How often should I test my 1RM?

You don’t need to test your true 1RM frequently. The performance on your “+ sets” gives you an indication of your strength. You typically add a fixed amount (e.g., 5 lbs for upper, 10 lbs for lower) to your 1RM for calculation purposes after each cycle based on “+ set” performance, rather than re-testing a max single.

What if I can’t complete the minimum reps on the “+ set”?

If you consistently fail to hit the minimum reps (5, 3, or 1) on the “+ set”, your Training Max is likely too high. Consider lowering your TM% or recalculating with a slightly lower 1RM.

How do I choose my Training Max percentage?

Start with 85% or 90%. If you are new to the program or coming back from a break, 85% is safer. If you are more experienced and confident in your 1RM, 90% is often used.

What assistance exercises should I do?

Jim Wendler suggests various assistance templates like “Boring But Big” or “Triumvirate”. They typically involve compound movements, bodyweight exercises, or isolation work to complement the main lift.

Is the deload week necessary?

Yes, the deload week is crucial for recovery, allowing your body and nervous system to recuperate, reducing the risk of overtraining and injury, and preparing you for the next cycle.

Can I use this 5/3/1 calculator for any lift?

Yes, you use the calculator for each of your main lifts (Squat, Bench Press, Deadlift, Overhead Press) by inputting the specific 1RM for that lift.

How do I progress after a cycle?

After completing a 4-week cycle, you generally add 5 lbs (or 2.5 kg) to your 1RM for upper body lifts and 10 lbs (or 5 kg) for lower body lifts, then recalculate your weights for the next cycle using the 5/3/1 calculator with the new 1RM.

Related Tools and Internal Resources