Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Fitness
Macro Split Calculator
Determine your optimal daily protein, carbohydrate, and fat targets in grams and calories based on your body weight, fitness goal, and training intensity. Supports cutting, bulking, maintenance, and ketogenic splits.
Fill in the required fields to see your result.
Fitness
One Rep Max Calculator
Estimate your one-rep maximum (1RM) — the maximum weight you can lift for a single repetition — from a submaximal set using Epley, Brzycki, Lander, or other established formulas. Use it to design strength-training programs without the injury risk of testing actual maxes.
Fill in the required fields to see your result.
Key differences
| Macro Split Calculator | One Rep Max Calculator | |
|---|---|---|
| Category | Fitness | Fitness |
| Inputs required | 2 | 4 |
| Result | Protein (grams) | Estimated Weight (kg) |
| What it does | Determine your optimal daily protein, carbohydrate, and fat targets in grams and calories based on your body weight, fitness goal, and training intensity. Supports cutting, bulking, maintenance, and ketogenic splits. | Estimate your one-rep maximum (1RM) — the maximum weight you can lift for a single repetition — from a submaximal set using Epley, Brzycki, Lander, or other established formulas. Use it to design strength-training programs without the injury risk of testing actual maxes. |