Free Training Tools

Science-backed calculators for cycling, running, and swimming. No signup required.

FTP Calculator

Calculate your Functional Threshold Power from a 20-minute, 8-minute, or ramp test.

Get your 7 Coggan power training zones based on your FTP. Know exactly what watts to target.

Calculate Training Stress Score from Normalized Power, FTP, and ride duration.

Calculate your 6 running training zones from threshold pace with km and mile support.

Determine your Critical Swim Speed and training zones from a 400m and 200m time trial.

Calculate daily calories, carbs, protein, and fat based on your training day type and body metrics.

Find the optimal front and rear tire pressure for your weight, tire width, and riding surface.

Calculate carbs, water, and sodium per hour for your ride or run. With a fueling timeline and product estimates.