Tools for money, math, dates, health and writing. No sign-up. Every result shows its formula, and everything runs privately in your browser.
The tools people reach for every day.
Exact age in years, months, days — and days until your next birthday.
What is X% of Y, X is what % of Y, and % change — with steps.
Monthly payment, total interest, amortization schedule and extra-payment effect.
BMI in metric or imperial, with category gauge and healthy weight range.
Full monthly payment breakdown: P&I, tax, insurance, PMI and HOA.
Semester and cumulative GPA on the 4.0 scale, with dynamic course rows.
Future value with monthly contributions, yearly table and growth chart.
Live word, character and sentence counts, reading time and keyword density.
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Exact age in years, months, days — and days until your next birthday.
What is X% of Y, X is what % of Y, and % change — with steps.
Monthly payment, total interest, amortization schedule and extra-payment effect.
BMI in metric or imperial, with category gauge and healthy weight range.
Semester and cumulative GPA on the 4.0 scale, with dynamic course rows.
Future value with monthly contributions, yearly table and growth chart.
Full monthly payment breakdown: P&I, tax, insurance, PMI and HOA.
Total days, business days and weeks between two dates.
Annual salary to hourly wage, weekly, biweekly and monthly — both ways.
Live word, character and sentence counts, reading time and keyword density.
Most calculator sites show you a number and nothing else. Every ToolFigure page shows the formula, a worked example with real numbers, and the honest limitations of the result — so you can check the maths yourself and know exactly what the number does and does not mean. Read more about ToolFigure.