How they differ
Under the hood, Calories Burned Cycling Calculator uses mifflin-st jeor bmr with activity multiplier fed by age, sex, weight, height, activity level. Calories Burned Running Calculator uses mifflin-st jeor bmr with activity multiplier fed by age, sex, weight, height, activity level. The two are not substitutes; they answer adjacent questions in your workflow.
Pick Calories Burned Cycling Calculator when your question is about calories burned cycling and your inputs are age, sex, weight, height, activity level. Pick Calories Burned Running Calculator when the question shifts to calories burned running and your inputs become age, sex, weight, height, activity level. If neither matches what you need, the Sport & Fitness category hub lists every tool we have for related questions.