Free online FTP test

Find your FTP with a ramp test in your browser

A 5-minute warm-up, then the trainer adds 20 W every minute until you cannot hold it. Your FTP is 75 % of your best minute. Free, about 12–18 minutes, and every workout after it is scaled to the number it finds.

Take the ramp test Calculate from a number

5 min warm-up 100 W, +20 W a minute… …until you cannot hold it

How it works

The trainer does the pacing. You do the suffering.

Pair your smart trainer in Chrome or Edge — no install.
Warm up for 5 minutes. The trainer holds an easy effort in ERG mode.
The ramp starts at 100 W and adds 20 W every minute. Keep your cadence up; the trainer sets the watts.
When you can no longer hold the step, the test sees your power fall and stops by itself.
Your FTP is 75 % of your best rolling minute — the last full minute you held, not a step boundary.

Already have a number?

FTP and zones calculator

Work it out from A ramp test’s best minute Your best 20 minutes

Best minute, average watts

Your FTP
225 W = 75 % of 300 W

Power zones for an FTP of 225 W
	Z1 Active recovery	0–124 W
	Z2 Endurance	124–169 W
	Z3 Tempo	169–203 W
	Z4 Threshold	203–236 W
	Z5 VO₂ max	236–270 W
	Z6 Anaerobic	270–338 W
	Z7 Neuromuscular	over 338 W

Then ride it with your crew

FTP is the number every WattRoom workout is written against. Once yours is set, you can ride the same workout as friends who are much faster or much slower than you — each trainer holds its own rider’s share — in a voice channel, talking the whole way. That is what WattRoom is for.

Questions

+How long does the ramp test take?

The whole test takes about 12–18 minutes: 5 minutes of warm-up, then steps until you cannot hold the target. Most riders fail somewhere between the seventh and the thirteenth step.

+Why 75 % of the best minute?

A ramp test finds your maximal aerobic power — the last minute you could sustain. For most riders an hour’s best power sits between 72 and 77 % of that, and 75 % is the middle every platform uses. It is an estimate within about ±5 %: very aerobic riders read low, punchy ones high.

+Do I need a smart trainer?

For WattRoom’s ramp test, yes: the trainer holds each step’s watts for you in ERG mode, so all you do is keep the pedals turning. A heart-rate strap is optional and adds an estimate of your threshold heart rate.

+When does the test end?

When you do. If your power falls well below the step for a few seconds, the test notices and stops — nobody at the end of a ramp is going to reach for a button.

+Is it free?

Yes. Sign in (free), open the ramp test, pair your trainer. The result becomes your FTP if you accept it, and the test is saved as a ride.

Know your number. Then bring your crew.

Start a crew, send its six-character code, and ride your first workout together tonight. Free, no install.

Start your crew Read the source