✦ Fitness & Nutrition Calculators: Calories, Macros & Strength Tools

For anyone serious about fitness and nutrition

Precision Nutrition & Fitness Calculations for Body Recomposition.

Calculate your exact daily targets in seconds. Use this interactive fitness and nutrition calculator to naturally guide your training and nutrition goals.

Covers 40+ exercises across every major muscle group.
Toggle between kilograms and pounds instantly.
See your full percentage-based training zones in one table.

Strength Calculator

Every input stays adjustable.

This calculator uses the Epley formula — 1RM = weight × (1 + reps ÷ 30) — to estimate your one-rep max from a submaximal set. It’s most accurate for sets of 1–10 reps.
1-10 ideal
Estimated one-rep max
0

kg

★★★★★ Trusted by 10,000+ intermediate lifters

Training zones

Percentage of your estimated 1RM, with a target rep range for each zone.

Intensity% of 1RMRepsWeight

✦ Explore Our Other Calculators

✦ Strength & 1RM Calculator

✦ Relative Strength Calculator

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