Cycling Calculators

Yes. The power-to-weight ratio calculator turns your FTP and body weight into W/kg and places it on the category chart (recreational, competitive, Cat 1/2, pro), which is what a power profile means for threshold power. For 5-second, 1-minute and 5-minute power, enter each best effort and compare the ratios; the power zones calculator then builds all 7 zones from your FTP.

For climbs, the climb time calculator takes gradient, distance, weight and watts and returns your time and VAM, so you can pick a sustainable power for the ascent. For flat time trials and group rides, the cadence speed calculator gives speed from gear and cadence, and the drafting calculator shows how many watts a wheel saves. A printable pace band comes from the pace band generator.

Normalized power needs second-by-second data (a 30-second rolling average raised to the fourth power, averaged, then the fourth root), so it is calculated by your head unit or by Strava, TrainingPeaks and Zwift after the ride rather than by a form. Where it matters here: the FTP calculator accepts normalized power from a criterium to estimate FTP (88 to 92 percent of NP), and the training stress calculator uses NP and FTP to give TSS and intensity factor.

The cadence speed calculator doubles as a bike pace chart: pick a gear and it lists speed at every cadence from 60 to 120 rpm. For race pacing by distance, 20 mph covers a 40K time trial in 1:14:34 and a century in 5 hours; 15 mph takes 1:39:25 and 6:40. Cycling metrics such as W/kg, TSS and VAM each have their own calculator above.

Any trainer that broadcasts power works, and the power accuracy decides how useful the zones are: a direct-drive trainer reads within 1 to 2 percent, a Peloton within 10 to 20. Our indoor cycling trainer vs Peloton comparison chart lays out the trade-offs, and the best smart trainers guide ranks the current lineup.