Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Cycling Nutrition Calculator

Calculate your total carbohydrate and supplemental fluid needs for a cycling ride longer than 90 minutes based on intensity, body weight, and temperature. Use it to pack the right number of gels and bottles.

Ride Duration (hours)

Intensity Level

Body Weight (kg)

Temperature

Fill in the required fields to see your result.

Cycling

Cycling VO2 Max Calculator

Estimate your VO2 max from a 20-minute cycling power test. Use it after an FTP test to benchmark aerobic capacity and track fitness gains over a training block.

Body Weight (kg)

20-Minute Average Power (watts)

Cycling Efficiency

Test Duration Factor

Fill in the required fields to see your result.

Key differences

	Cycling Nutrition Calculator	Cycling VO2 Max Calculator
Category	Cycling	Cycling
Inputs required	4	4
Result	Carbohydrate Needs (grams)	Estimated VO2 Max (ml/kg/min)
What it does	Calculate your total carbohydrate and supplemental fluid needs for a cycling ride longer than 90 minutes based on intensity, body weight, and temperature. Use it to pack the right number of gels and bottles.	Estimate your VO2 max from a 20-minute cycling power test. Use it after an FTP test to benchmark aerobic capacity and track fitness gains over a training block.