A small set of calculators I actually use — freelance rates, AI tool ROI, running pace, food nutrition, coffee costs, and gym vs. home gym. No sign-up, instant results.
Every calculation runs in your browser — no waiting, no server round-trips.
A handful of calculators, kept because each one earns its place — not padded out for the sake of a number.
No account, no email, no paywall. Just open any tool and use it.
Use the Freelancer Rate Calculator — enter your target income and it accounts for tax, holiday, sick days, and gaps between clients that a simple salary-to-day-rate conversion misses.
The AI Tool ROI Calculator puts a real number on it — enter the time an AI tool saves you and your hourly value, and it tells you whether the subscription pays for itself.
The Running Pace Calculator converts between pace, distance, and time — enter any two and it works out the third, including common race distances like 5K, 10K, and marathon.
Nutri-Score (A–E) grades a food's nutritional quality; NOVA (1–4) grades how processed it is. The Food Nutrition Scanner shows both alongside calories and macros — search by name, barcode, or manual entry.
Yes — every tool on WorthIt Tools is completely free, now and always. No account, no email address, no hidden paywall. Just open any tool and use it.
Each tool shows its formula and sources on its own page. The freelancer rate and coffee cost calculators are direct arithmetic; the running pace calculator uses standard pace-time-distance conversion; the food nutrition scanner pulls from USDA FoodData Central and Open Food Facts.