One family of free data sites
9 reference sites covering everyday “how much / how long” data. Each answers one question properly instead of all of them badly. Nothing here is paid placement, and nothing asks you to sign up.
BurnLab
What an activity actually costs in calories, for your weight and your duration — from the 2024 Adult Compendium MET values.
FuelFacts (you are here)
Calories, protein, fat and 12 more nutrients for 1,799 foods, straight from the USDA SR Legacy tables.
FlyTime
Great-circle distance and realistic block time for city pairs worldwide, with the arithmetic shown.
LuxPlan
How many downlights a room of your size needs, worked with the lumen method and drawn as a ceiling plan.
WattCost
What an appliance costs to run for a year on your tariff, from ENERGY STAR certified consumption data.
ReadLength
Word count, reading level and honest reading time for public-domain books, computed from the text itself.
RunCost
What a car costs to run per year and per kilometre, from official EPA test figures and current fuel prices.
CookClock
How long a cut takes at your weight and oven temperature, with the USDA safe internal temperature it has to reach.
WhiteLights
What an average squat, bench and deadlift actually is — computed from millions of judged competition lifts, not self-reported app numbers.
The other family
A different audience and a different subject, so it gets one link rather than a shared nav.
GymFinder
Gyms in 200+ Indian cities with researched fee ranges — compiled from open data, never paid placement.
All of these are built and maintained by one person, funded by advertising, and published with their working shown. Corrections go to the contact page; the data sources are listed on each site's method page.