A free calorie burn calculator that estimates calories for 100+ activities using real MET values. Enter your weight (kg or lbs), pick an activity and set the time. You get results right away, with a fun “roughly equal to” comparison. Unlike basic calculators, it also includes a session log with daily and weekly totals, a weekly summary, a BMR calculator, favorites and a top-activities comparison. You can export your data too. There is no signup and no paywall.