Free cycling calculators

Calculators for anyone on a bike. Work out how long a climb would take you, how many calories a ride burns and what your numbers mean. Each one is free and works on your phone.

• Climb time calculator

  How long a hill would take you to ride up, with no stops.

• Exercise bike calorie calculator

  Calories burned on an exercise bike or smart trainer, from your watts or how it felt.

• Compare two climbs

  Put two famous climbs side by side and see how long each would take you.

• FTP calculator

  Your FTP from a 20 minute, ramp, 8 minute or one hour test.

• Watts per kg calculator

  Your power to weight in watts per kg, with typical levels for men and women.

• Power zones calculator

  Your seven cycling power zones in watts, worked out from your FTP.

• Heart rate zones calculator

  Your five heart rate zones, from your age or your maximum heart rate.

• Cycling speed calculator

  Turn watts into speed, or speed into watts, on a flat road or a hill.

• Gradient calculator

  Work out how steep a road is, in per cent and degrees, and how it feels.

• VAM calculator

  Work out how many metres you climb in an hour, and a rough watts per kg.

• Climb difficulty calculator

  Give any hill a difficulty score and see how it compares with famous climbs.

• Gear ratio calculator

  Gear ratio, gear inches and speed for your chainring, sprocket and wheel.

• Bike size calculator

  The frame size to look for, from your height and inside leg.

• Bike tyre pressure calculator

  Front and back tyre pressures in psi and bar, from your weight and tyre width.