Browse Fitness Calculators by Category
RepMaths organizes its calculators into four categories. Pick a category to see the individual tools.
1RM & Strength Calculators Estimate one rep max for bench press, squat, deadlift, and overhead press. Includes 1RM percentages, rep max conversion, and strength standards. 8 calculators Training & Programming Convert 1RM into a training max, generate a 5/3/1 cycle, build warm-up ramps, and convert RPE or RIR to estimated max. 4 calculators Plate & Equipment Work out barbell plate loading per side for any target weight in kilograms or pounds. 1 calculator Nutrition & Body Composition Calculate TDEE, BMR, macros, protein, body fat, BMI, FFMI, lean body mass, ideal weight, water intake, and calories burned. 12 calculators
How RepMaths Is Organized
The strength category covers one rep max estimation for the four main barbell lifts, along with 1RM percentages, rep max conversion, and bodyweight-based strength standards.
The training category handles programming — training max, 5/3/1 cycles, warm-up ramps, and RPE/RIR conversion.
The equipment category handles gym math, including barbell plate loading for any target weight.
The nutrition category includes energy balance and body composition tools: TDEE, BMR, macros, protein, body fat, BMI, FFMI, lean body mass, ideal weight, water intake, and calories burned.