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Calories Burned Calculator — MET x Weight x Time

MET-based calorie burn for 30+ activities — running, cycling, swimming, HIIT, housework — stack and total — browser-only

  • Runs locally
  • Category Calculator
  • Best for Getting a realistic range before a purchase, plan, workout, or schedule decision.
Units
MET
9.8
kcal
343
Total burned
343 kcal
9.8 MET × 70 kg × 30/60 h = 343 kcal

MET (Metabolic Equivalent of Task) values come from the 2011 Compendium of Physical Activities — the same reference wearables use. 1 MET ≈ sitting still.

These are population-average estimates. Your real burn varies with fitness, terrain, heart rate and efficiency — treat the number as a planning baseline, not a precise reading.

What this tool does

Free online calories-burned calculator that uses the textbook MET formula every fitness lab and wearable starts from: calories = MET x your weight in kilograms x duration in hours. Pick from more than thirty activities — running by pace, brisk walking, leisure to vigorous cycling, freestyle swimming, weight training, HIIT, rowing, jump rope, yoga, basketball, soccer, and everyday tasks like cleaning or gardening — set how long you went, and read the calorie cost instantly. Each activity carries its MET value from the 2011 Compendium of Physical Activities (Ainsworth et al.), the same reference Apple Health, Garmin and Strava seed their baselines from. You can stack several rows in one session, say a 25-minute HIIT block plus a 15-minute cool-down walk, and the tool sums the total burn so you see the whole workout, not one piece. Enter weight in kilograms or pounds; everything converts internally to kilograms before the math runs. The share link and copy button carry your exact inputs so a training partner lands on the same numbers. Every calculation runs in your browser — your weight and workout never reach a server.

Tool details

Input
Numbers
The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output
Live result + Copy
The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy
Browser-side processing
The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share
Shareable URL state
Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget
Initial JS <= 12 KB
No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit
Calculator · HR
Category and role tags drive related tools, internal links, and quick fit checks.

How to use

  1. 1. Input

    Paste or drop your content into the tool panel.

  2. 2. Process

    Click the button. All processing is local in your browser.

  3. 3. Copy / Download

    Copy the result or download to disk in one click.

How Calories Burned Calculator fits into your work

Use it for fast estimates, comparisons, and planning numbers before you make the final call.

Calculation jobs

  • Getting a realistic range before a purchase, plan, workout, or schedule decision.
  • Comparing scenarios by changing one input at a time.
  • Turning rough assumptions into a number you can discuss.

Calculation checks

  • Double-check units, dates, rates, and rounding assumptions.
  • Treat health, finance, tax, and legal outputs as planning aids, not professional advice.
  • Save the inputs that produced an important result so you can reproduce it later.

Good next steps

These links move the current task into a more complete workflow.

  1. 1 Calorie Calculator Calorie calculator — daily calorie needs (BMR + TDEE), weight loss/gain targets, macro breakdown. Open
  2. 2 BMR Calculator BMR calculator — basal metabolic rate by Mifflin-St Jeor and Harris-Benedict (compared side-by-side). Open
  3. 3 Calorie Deficit Calculator Pick a daily calorie deficit, enter your current and goal weight, and see how many weeks it takes and the date you'd hit your target — with a safety check, browser-only Open

Real-world use cases

  • Check whether a run actually offset a treat

    You had an extra 350 kcal snack and want to know if today's run covered it. Enter your weight, pick the running pace that matches your watch, set the minutes, and read the burn. A 70 kg runner at a 10 min/mile pace for 35 minutes clears about 400 kcal — so the snack is covered, with a little left over. Pair it with the calorie-deficit calculator to see what that means for the week.

  • Plan a mixed workout's total burn before you start

    Your session is a 20-minute HIIT circuit plus 20 minutes on the bike. Add both rows, set the minutes, and the tool sums them so you know the whole session's cost up front. This is more honest than reading one number off a single machine, because it counts every block at its own MET.

  • Compare two activities for the same time budget

    You have 30 free minutes and want the bigger burn — jump rope or a brisk walk. Add one row for each at 30 minutes and the per-activity kcal numbers sit side by side. Jump rope at 11 MET roughly triples a slow walk for the same half hour, which makes the trade-off obvious.

  • Estimate calories burned doing housework

    Not every burn happens in a gym. Cleaning, mopping and gardening all carry real MET values, so an hour of vigorous housework on a busy Saturday is worth logging. Add the home activities, set the time, and fold the total into your daily energy picture alongside your BMR.

  • Share a workout plan with a training partner

    Build the session — activities and minutes — then hit Share link. The URL carries every input, so your partner opens the exact same plan and totals on their phone without re-typing anything. Copy result gives a plain-text summary you can paste into a training log or chat.

Common pitfalls

  • Picking the wrong pace row. Running MET jumps fast with speed — an easy jog and near-race pace differ by 6+ MET. Choose the row matching your real pace, or the estimate inflates.

  • Comparing this directly to a watch or treadmill number. Those often add resting calories or use a heart-rate model, so they read higher. This fixed-table figure sits a little lower.

  • Using calories burned to justify eating exactly that much back. Estimates carry a 10 to 20 percent error band, and eating back the full figure is the classic reason a deficit stalls. Leave a margin.

Privacy

Your weight, chosen activities and durations stay in the browser while the calculation runs. Toolora does not require an account for this tool and never uploads the values; only your kg/lb unit preference is stored locally.

FAQ

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Made by Toolora · 100% client-side · Updated 2026-06-13