What does the watts-to-calories calculator do?

It converts your cycling power output into energy. Enter your average power in watts and duration, and it returns the mechanical work done in kilojoules along with the calories you burned, helping you match training effort to nutrition.

How do watts convert to calories burned?

Average watts times duration in seconds gives work in joules, divided by 1,000 for kilojoules. Conveniently, kilojoules of work roughly equal the calories burned, because human cycling efficiency of about 20–25% nearly cancels the kJ-to-kcal conversion factor.

Why do kilojoules roughly equal calories on a bike?

Cyclists are only about 20–25% efficient, so for every kilojoule of mechanical work you actually expend about four to five kilojoules of energy. Since one calorie is about 4.18 kilojoules, the two numbers end up nearly equal, making kJ a handy calorie estimate.

Watt-til-kalorier-kalkulator

Sykkeleffekt til arbeid og kalorier

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Gjennomsnittlig effekt (watts)

din gjennomsnittlige effekt for turen, f.eks. 200

Varighet (minutter)

turens lengde i minutter, f.eks. 60

Watt-til-kalorier-kalkulator

Effektmålere viser watts og kilojoule, men de fleste tenker i kalorier. Skriv inn din gjennomsnittlige effekt og hvor lenge du syklet, så returnerer denne kalkulatoren det mekaniske arbeidet i kilojoule og kaloriene du forbrente, med en typisk sykkeleffektivitet på omtrent 24%. Bruk den til å sjekke en tur mot kostholdet ditt, sammenligne innsats eller forstå hvorfor kilojoule arbeid og forbrente kalorier ender opp omtrent like på en sykkel.

Mekanisk arbeid er effekt × tid: watts × sekunder gir joule, vist her i kilojoule. Syklister forbrenner mer energi enn det arbeidet fordi musklene bare er omtrent 24% effektive — resten blir til varme. Å dele arbeidet på 0.24 og regne om til kilokalorier er grunnen til at en nyttig tommelfingerregel er at forbrente kalorier ≈ kilojoule arbeid. Dette teller bare treningsenergien, ikke hvilestoffskiftet ditt, og antar typisk sykkeleffektivitet.

Ofte stilte spørsmål

What does the watts-to-calories calculator do?: It converts your cycling power output into energy. Enter your average power in watts and duration, and it returns the mechanical work done in kilojoules along with the calories you burned, helping you match training effort to nutrition.
How do watts convert to calories burned?: Average watts times duration in seconds gives work in joules, divided by 1,000 for kilojoules. Conveniently, kilojoules of work roughly equal the calories burned, because human cycling efficiency of about 20–25% nearly cancels the kJ-to-kcal conversion factor.
Why do kilojoules roughly equal calories on a bike?: Cyclists are only about 20–25% efficient, so for every kilojoule of mechanical work you actually expend about four to five kilojoules of energy. Since one calorie is about 4.18 kilojoules, the two numbers end up nearly equal, making kJ a handy calorie estimate.

Watt-til-kalorier-kalkulator

Ofte stilte spørsmål

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