Free Cycling Tools

Quick, free calculators for indoor cyclists — no sign-up, no catch. Work out your FTP, power zones, and power-to-weight in seconds.

FTP Calculator

Estimate your Functional Threshold Power without a test — from your weight and fitness — and see the training zones built from it.

Enter your FTP to get all seven Coggan power training zones in watts, colour-coded just like they are inside Ride Cave.

Find your power-to-weight ratio in W/kg from any power number and your body weight, with a fitness benchmark.

Enter your age to get your max heart rate, threshold HR, and five cycling training zones in beats per minute.

Estimate calories burned biking from your weight, time, and intensity — or accurately from your average power.

See how much you save by dropping a monthly cycling subscription for Ride Cave — free to ride, or one-time lifetime.

Answer a few questions for a personalized indoor cycling setup: which smart trainer to buy, the gear you need, and your starting FTP.

Ride Cave sets your zones from your FTP automatically and builds every workout around them. Free to ride in your browser — no trial, no credit card.