Calorie calculator (per-sport leg estimator), Yousuli Help

What it does

The calorie calculator estimates kcal burned for a single sport leg — pick swim, bike, or run, fill in the leg's inputs, and the matching readout updates. The totals row sums whichever legs you've filled, so for a full triathlon you fill all three in succession and the total accumulates.

URL: /calculators/ then open Calorie. Direct path: /static/calculators/triathlon_calorie_calculator.html.

Inputs the form asks for

Setup

Unit system — metric (kg / km) or imperial (lb / mi).
Sport selection — one of Swim, Bike, or Run. The form shows only the active sport's fields. To compute a full triathlon, run the calc three times (one per leg).

Swim leg

Weight (kg).
Gender (select).
Distance (km) — for IM swim that's 3.8, for an Olympic swim 1.5, etc.
Pace (sec/100 m) — your sustainable pool pace at race intensity.
Environment — Pool / Lake / Ocean (calm or chop). Drives the wetsuit/buoyancy/chop multiplier.
Difficulty — Easy / Endurance / Tempo / Threshold / Anaerobic. Sets the intensity factor.

Bike leg

Weight (kg).
Distance (km).
Riding style (select) — touring / road / TT / mountain.
Difficulty — same intensity scale as swim/run.
Optional bike power override — if you have a power meter, enter Power (W) and Duration (min) in the hidden override panel. Power-based calorie computation takes precedence over the riding-style estimate when both are filled.

There are no wind, terrain, or temperature inputs on this calculator — those live on the CdA and bike power plan tools.

Run leg

Weight (kg).
Distance (km).
Difficulty — Easy / Endurance / Tempo / Threshold / Anaerobic.

There is no run pace input. Run calorie burn is estimated from weight × distance × intensity factor. If you want a pace-driven run model, use the running-time calculator to get a duration, then feed that into a bike-power-style fuel rate from the fueling calculator.

Outputs

Swim calories — only if you filled the swim leg.
Bike calories — only if you filled the bike leg.
Run calories — only if you filled the run leg.
Total calories — sum of whichever legs were filled.

When to use it

Race-day calorie target as a sanity check on the fueling calculator output.
Comparing two race-day strategies (e.g. push the bike vs conserve for the run) at a calorie level.
Quick weekly energy expenditure estimate from a planned training week.

When NOT to use it

For lab-quality energy-expenditure science — this is a field estimator, not a metabolic-cart replacement.
As your only fuelling input — pair with the fueling calculator which models CHO/h, fluid/h, sodium/h directly.

Calorie calculator (per-sport leg estimator)