Cycling Calculators.

Your average speed in mph and km/h, plus pace per mile and per km, or how long a ride takes at a target speed.

Your distance per ride from your time and average speed, plus weekly, monthly and yearly mileage in miles and km.

Your pedalling cadence in rpm from your speed, chainring, cog and wheel size, with gear ratio and development.

Finish time and quarter splits for a 100 mile or metric century, plus the speed needed to hit a target time.

Estimate FTP from a 20 minute test and get all seven Coggan power zones in watts, plus your W/kg.

Watts needed to ride up a hill from your weight, gradient and speed, with W/kg, climb time, elevation and VAM.

Estimated power in watts your turbo trainer makes at a given speed, plus watts per kg and equivalent flat-road speed.

Your power zones in watts or heart rate zones in bpm from your FTP or threshold heart rate, for structured indoor training.

A structured indoor cycling session built from your goal, time and fitness level, with warm-up, intervals and calories.

The watts you need to hold a given speed, with W/kg and a full aero, rolling resistance and gravity breakdown.

How long a ride will really take from your distance, average speed, elevation gain and stops, with an arrival time.

Estimate your VO2 max in ml/kg/min from heart rate or cycling power, with a fitness rating for your age and sex.

Estimate how far your electric bike will go from its battery watt-hours, assist level, terrain and weight.

Recommended front and rear PSI and bar from your weight, tyre width, tube type and surface, for road, gravel and MTB.

The correct chain length in links and inches from your chainstay and largest chainring and cog.

Left and right spoke lengths in mm from your ERD, hub flange numbers, spoke count and cross pattern.

Front and rear PSI for a mountain bike from your weight, tire width, wheel size, tubeless setup, terrain and style.

Gear ratio, gear inches, gain ratio, metres of development and speed from your chainring, cog, wheel and cadence.

Gear ratio, gear inches, skid patches, development and speed for a fixie or track bike setup.

How many calories you burn on the bike from your weight, ride time and intensity, with hourly burn rate.

Calories burned on an exercise bike from your weight, workout time and intensity, with your calories-per-hour burn rate.

Distance covered on a stationary bike in miles and km from your workout time and average speed, with pace per mile.

Calories burned per session and per week on an exercise bike, your weekly weight loss, and how long to reach your goal.

Turn your bike miles into equivalent running miles by effort, so you can compare a ride to a run and cross-train.

Your sweat rate per hour and how much fluid to replace, from your weight before and after a ride plus what you drank.

Calories burned on a recumbent exercise bike from your weight, workout time and intensity, with your calories-per-hour burn rate.

Recommended frame size and S/M/L from your height and inseam for road, gravel, mountain, hybrid and city bikes.

Your ideal saddle height from your inseam using the proven LeMond method, with a fit range.

Saddle height, setback, bar drop, reach, stem length, crank length, bar width and frame size from your height and inseam.

A recommended mountain bike handlebar width in mm from your height, riding discipline and shoulder width, with a range to test.

What a frame refinish really costs, with prep, blasting, finish and masking itemised and a realistic quote range.

Estimate what your bike is worth from its original price, age, condition and type, with a fair asking-price range.

Find your jersey size from your chest measurement, with a full XS to 3XL chart in inches and cm.

Find your bib shorts size from your waist and hip, with a full XS to 3XL chart in inches and cm.

Convert your cycling shoe size between EU, US and UK from your foot length, with a full conversion table.

Find your helmet size from your head circumference in inches or cm, with a full XS to XL size chart.

Find your glove size from your hand circumference in inches or cm, with a full XS to XXL size chart.