How Many Calories Burned Per Hour Cycling? | Ride Math

Minute for minute, pedal energy depends on how fast you ride, your mass, terrain, wind, and how steady you keep the pressure on the pedals. The math behind these estimates is straightforward and repeatable, so you can size up any route and set expectations with confidence.

Calories Per Hour On A Bike: What Changes It

Exercise scientists assign each activity a “MET” number. That number scales with weight to estimate heat burned. One MET equals about 1 kcal per kilogram per hour, and standard cycling METs range from 4 at a gentle cruise to 16+ at race speeds.

Quick Reference Table (By Speed And Weight)

The figures below use widely accepted MET values for outdoor riding and the standard formula (kcal/hour ≈ 1.05 × MET × body kg). Speeds refer to mostly flat routes with little stopping.

Intensity & Speed (MET)	60 kg (kcal/h)	80 kg (kcal/h)
Leisure <10 mph (4.0)	250–260	330–340
Easy 10–11.9 mph (6.8)	~430	~570
Moderate 12–13.9 mph (8.0)	~505	~670
Brisk 14–15.9 mph (10.0)	~630	~840
Fast 16–19 mph (12.0)	~755	~1,010
Very Fast >20 mph (16.8)	~1,060	~1,410

To put these numbers in context, training targets are easier to hit once you’ve set your daily calorie needs. That way, ride energy slots neatly into your day without guesswork.

How The Numbers Are Calculated

Here’s the simple method used by coaches and labs. Start with the MET for your ride intensity, multiply by your body mass in kilograms, and scale by time. A widely used shorthand is: calories per minute = 0.0175 × MET × weight(kg), so a 70 kg rider at 8 MET burns about 9.8 kcal/min, or ~590 kcal per hour.

Pick METs from an official list and your estimates stay consistent. The Compendium METs for bicycling groups speeds and scenarios such as headwinds, gravel, or racing.

What Counts As Moderate Versus Vigorous

Public-health guidelines label riding slower than 10 mph as moderate and faster paces as vigorous. A quick gut check helps: during moderate work you can talk, at vigorous levels you get out short phrases only.

Factors That Move Your Hourly Burn Up Or Down

Speed And Power

Drag rises fast as you speed up. That’s why METs climb steeply past 14 mph. If two riders weigh the same, the one holding a higher average speed on the same route will log the higher hourly burn. Compendium values reflect that jump in effort when you move from a steady spin to a fast push.

Body Mass

The formula scales linearly with kilograms. A 60 kg cyclist at 10 MET lands near ~630 kcal/h, while an 80 kg cyclist at the same effort sits near ~840 kcal/h. Same intensity, different totals because more mass requires more work to move and cool.

Terrain, Wind, And Stops

Rolling hills add surges that raise average intensity. Headwinds mimic climbing. Frequent stops lower the hourly average because idle time has a small MET cost. A smoother route with fewer lights keeps your average closer to the table values.

Position, Cadence, And Gear Choices

Staying in the drops trims drag; soft pedaling upright does the opposite. A comfortable cadence lets you hold power longer. Small changes here add up across sixty minutes.

Indoor Riding: Watts And Spin Class

Stationary bikes list METs by power output. That makes it easy to match estimates to the screen in front of you. Spin classes typically sit around 9 MET for many blocks, then spike during sprints.

Indoor Reference Table (By Watts And Weight)

Numbers below use stationary-bike METs tied to common watt ranges. Pick the row closest to your average power and read across for your mass.

Stationary Bike (MET)	60 kg (kcal/h)	80 kg (kcal/h)
90–100 W (6.0)	~380	~500
151–199 W (10.3)	~650	~865
200–229 W (10.8)	~680	~910
230–250 W (12.5)	~790	~1,050
270–305 W (13.8)	~870	~1,160
>325 W (16.3)	~1,030	~1,370

Real-World Scenarios For A One-Hour Ride

Steady Park Loop

Flat path, little wind, 12–13 mph for an hour. At ~8 MET, a 70 kg rider lands near ~590 kcal. Pick a calm time of day and smooth lines through turns to keep the average steady.

Rolling Suburbs

Short climbs, gentle descents, 14–16 mph average. METs sit near 9–10. A 70 kg rider totals ~630–735 kcal by the hour, with spikes on the rises and small breaks on the drops.

Group Hammerfest

Fast paceline, 18–20 mph. METs climb near 12. That same 70 kg rider reaches ~880–1,000 kcal, often higher if pulls are long or the route has false flats. Drafting helps speed, though the metabolic cost still stacks at a brisk level.

Ways To Tighten Your Estimate

Use A Power Meter Or Smart Trainer

Power gives a direct window into work on the bike. Average watts multiplied by time yields kilojoules, which closely track calories burned during the ride. Pair that with Compendium ranges to sanity-check any big swings.

Match Intensity With The Talk Test

Can you chat? You’re near moderate. Can you only get out a few words? You’re in vigorous territory. This simple cue lines up with public-health definitions and helps riders who don’t train by numbers.

Account For Stops

Two minutes at a light drops your hourly total. If your route has lots of crossings, add a small buffer when planning a burn target.

Check The Weather

Headwinds raise METs. Tailwinds do the opposite. A steady breeze can shift your hourly burn by a few hundred calories if you’re riding fast.

Sample One-Hour Workouts With Approximate Burn

Endurance Hour

Warm up 10 min easy, then 45 min steady at a pace where conversation flows, and a 5 min spin-down. That’s ~6–8 MET on most flat routes. A 70 kg rider sees ~440–590 kcal.

Tempo Hour

After a warm-up, ride 3 × 12 min at a pace that asks you to breathe deeper while keeping form crisp. Recover 3 min between. Expect ~8–10 MET and ~590–735 kcal for 70 kg.

Spin-Class Style

Intervals around 9 MET with sprints that spike higher. A 70 kg rider usually lands around ~700–900 kcal in an honest hour indoors.

Safety And Recovery Notes

Hydrate, fuel if you go past an hour, and keep an eye on how you feel during heat waves. If you’re building volume, increase weekly totals in small steps. For health context on moderate and vigorous work, see the CDC’s intensity page.

Turn Estimates Into A Plan

Pick a weekly burn target, map it across two to four rides, and track averages. Pair ride energy with meals that match your goals. If fat loss is the aim, set a modest shortfall through food first and use the bike to nudge the weekly total in your favor. A deeper primer on energy balance sits in our calorie deficit guide.