Calories Burned Cycling at a light effort (10-11.9 mph) at 55 kg — 374 kcal per Hour
Cycling at a light effort (10-11.9 mph) at 55 kg (121 lb) burns about 374 kcal per hour. That figure comes from the activity's MET value of 6.8 in the 2011 Compendium of Physical Activities, multiplied by body weight: 6.8 x 55 kg x 1 hour = 374 kcal. This page works the numbers out in full - for 15, 30, 45, 60 and 90 minutes, across all four weight bands, and against four comparable activities at the same weight - so you can plan sessions with real figures instead of guessing.
Cycling at a light effort means riding at 10-11.9 mph (16-19 km/h) — a steady, purposeful pace, faster than a gentle spin but still comfortable enough to talk in short sentences. The Compendium rates it at 6.8 METs, which makes it a solid moderate-to-vigorous workout: noticeably harder than a leisurely ride, but sustainable for an hour or more. It is the pace of a commuter in a hurry, or a weekend rider on a flat route.
Light-effort cycling suits commuters, weekend riders, and anyone building fitness on a bike. The headline number to remember is 374 kcal per hour at 55 kg, or about 187 kcal for a 30-minute ride. Everything below is an estimate: MET values are population averages, and your own burn will vary with fitness, hills, wind and the bike you ride. Treat the figures as a planning tool, not a personal measurement.
Calculate your own numbers
Use the calorie calculator to work out your own burn for cycling at a light effort (10-11.9 mph) at your exact weight and session length. Enter your weight, pick the activity and set the duration, and the tool applies the same MET formula shown below. You can also try the maintenance calorie calculator to see how this session fits into your total daily energy use.
Related pages in this section:
Calories Burned Cycling at a light effort (10-11.9 mph) at 65 kg — 442 kcal per Hour
Calories Burned Cycling at a light effort (10-11.9 mph) at 75 kg — 510 kcal per Hour
Calories Burned Cycling at a light effort (10-11.9 mph) at 85 kg — 578 kcal per Hour
The formula, shown and cited
The standard way to estimate the energy cost of an activity is the MET formula from the Compendium of Physical Activities (Ainsworth et al., Medicine & Science in Sports & Exercise, 2011; 43(8): 1575-1581):
Calories (kcal) = MET x body weight (kg) x duration (hours)
One MET is the energy you use sitting quietly at rest - about 1 kcal per kilogram of body weight per hour. An activity rated at 6.8 METs therefore uses 6.8 times as much energy as resting. The Compendium's MET values come from published studies that measured oxygen use during each activity, so they are measured averages, not guesses. The value used here, 6.8, is the one recorded for cycling at a light effort (10-11.9 mph) in the FitCalc activity data.
Worked through for this page:
- MET for cycling at a light effort (10-11.9 mph): 6.8
- Body weight: 55 kg (the midpoint of the 50-60 kg band, 121 lb)
- Duration: 1 hour
- Calculation: 6.8 x 55 x 1 = 374 kcal
For a 30-minute session the same calculation is 6.8 x 55 x 0.5 = 187 kcal. Nothing else is hidden in the maths - if your weight or duration changes, only those two numbers change.
Your numbers at 55 kg
| Duration | Calculation | Calories burned |
|---|---|---|
| 15 minutes | 6.8 x 55 x 0.25 | 94 kcal |
| 30 minutes | 6.8 x 55 x 0.5 | 187 kcal |
| 45 minutes | 6.8 x 55 x 0.75 | 280 kcal |
| 60 minutes | 6.8 x 55 x 1 | 374 kcal |
| 90 minutes | 6.8 x 55 x 1.5 | 561 kcal |
That is about 6.2 kcal per minute of cycling at a light effort (10-11.9 mph) at this weight. A short session still counts: even 15 minutes burns 94 kcal, and three 15-minute sessions across a day add up to the same 280 kcal as one 45-minute session.
How the burn changes with body weight
The MET value stays the same - it describes the activity, not the person - but the calorie total scales with weight, because a heavier body costs more energy to move:
| Body weight | Calories per hour | Calories per 30 minutes |
|---|---|---|
| 55 kg | 374 kcal | 187 kcal |
| 65 kg | 442 kcal | 221 kcal |
| 75 kg | 510 kcal | 255 kcal |
| 85 kg | 578 kcal | 289 kcal |
Two people doing the same activity for the same time can therefore burn quite different amounts, and that is expected - it is physics, not a mistake in the formula. If your weight sits between two rows, your figure sits between the two values.
How cycling at a light effort (10-11.9 mph) compares
Here is cycling at a light effort (10-11.9 mph) against four other activities at the same 55 kg, all using the same MET formula:
| Activity | MET | Calories per hour at 55 kg |
|---|---|---|
| cycling at a light effort (10-11.9 mph) | 6.8 | 374 kcal |
| cycling at a leisurely pace (under 10 mph) | 4 | 220 kcal |
| cycling at a moderate effort (12-13.9 mph) | 8 | 440 kcal |
| stationary cycling at a moderate effort | 7 | 385 kcal |
| swimming backstroke | 7 | 385 kcal |
Use this table to choose, not to judge. A higher number means a harder session, not a better one: the activity you enjoy and repeat three times a week beats the activity that burns more per hour but that you quit after a fortnight. Mixing intensities across the week - one harder session, two easier ones - is usually more sustainable than doing the hardest activity every time.
Fitting cycling at a light effort (10-11.9 mph) into your week
| Sessions per week | 30 minutes each | 60 minutes each |
|---|---|---|
| 2 sessions | 374 kcal | 748 kcal |
| 3 sessions | 561 kcal | 1122 kcal |
| 5 sessions | 935 kcal | 1870 kcal |
At 6.8 METs, cycling at a light effort is vigorous enough to count double toward the widely used adult activity target in some guidance, and it certainly counts as moderate activity at the very least: three 30-minute rides a week give you 90 minutes of activity and burn about 561 kcal a week at 55 kg. A daily commute at this pace can meet the whole weekly activity target on its own, without any extra exercise.
How to use the result
Keep a steady cadence of 70-90 pedal revolutions per minute, and use your gears to hold that cadence rather than grinding a big gear slowly. Sit mostly upright but not bolt upright, keep your elbows slightly bent, and look ahead rather than down at your front wheel. Use this pace for commuting or for 45-60 minute weekend rides, and build up by adding ten minutes a week. Carry water and a snack on longer rides, and wear a helmet. If you are tracking food as well, add the ride's calories to your total daily energy expenditure for that day, and remember that the figure is an estimate with roughly 10-20% uncertainty. Do not eat back every calorie the calculator shows. If you are aiming to lose weight, keep the deficit modest - 300-500 kcal a day is a common, sustainable range - and keep your total intake above the safety floors of 1,200 kcal a day for women and 1,500 kcal a day for men unless a healthcare professional advises otherwise.
What the number does NOT tell you
The MET formula assumes steady cycling on level ground at 10-11.9 mph, so it does not account for hills, headwinds, traffic stops, or the type of bike: a heavy bike with wide tyres costs more effort than a light road bike at the same speed. It does not account for your fitness or body composition, it does not include the afterburn that follows exercise, and it says nothing about the fitness or mood benefits of cycling. It also cannot tell you whether cycling is safe for you: if you have a heart condition, joint problems or any other health concern, check with a healthcare professional before starting a new exercise routine. Use the calorie figure as a planning estimate.
Frequently asked questions
How many calories do I burn cycling at a light effort for 30 minutes at 55 kg?
About 187 kcal. The maths is 6.8 METs x 55 kg x 0.5 hours = 187 kcal. That is an estimate from the Compendium average — hills, wind and a heavier bike will raise the real figure.
How fast is a light cycling effort in km/h?
10-11.9 mph is 16-19 km/h. At the 11 mph midpoint, a mile takes about 5 minutes 27 seconds and a kilometre takes about 3 minutes 23 seconds. That is a brisk commuting pace on flat ground.
How many calories do I burn cycling at a light effort per mile?
About 34 kcal per mile at 55 kg, at the 11 mph midpoint. The per-hour figure of 374 kcal is more useful for planning, because your speed will vary with hills, wind and traffic.
Is light-effort cycling good for commuting?
Yes — it is the classic commuting pace. A 30-minute commute each way, five days a week, gives you 300 minutes of activity a week, which is double the widely used 150-minute target, and burns about 935 kcal a week at 55 kg if each leg is 30 minutes.
Can light-effort cycling help with weight loss?
It can help, but only as part of an overall calorie deficit. At 55 kg, an hour burns about 374 kcal, and three 30-minute rides a week burn about 561 kcal. Weight loss still comes from the total balance of food and activity across the week. Aim for a gradual loss of 0.5-1% of body weight per week, and never drop below 1,200 kcal a day (women) or 1,500 kcal a day (men) without medical supervision.
Estimates only, not medical advice. Minimum safe intakes: 1,200 kcal/day women, 1,500 kcal/day men - consult a healthcare professional before a very-low-calorie diet.