Online calculators,
made obvious.

Fast, practical calculators for dates, percentages, business, money, work, everyday decisions and home projects. Get from a familiar question to a trustworthy result with as little friction as possible.

Calculator index

Choose what you’re solving.

Each calculator is a focused tool with a clear result, the assumptions that matter, and enough explanation to verify the answer yourself.

01

Date & Time

Count intervals, move dates, calculate deadlines and working days, run live countdowns, measure time and understand calendar dates precisely.

01.1Days Between Dates CalculatorCount calendar days, full weeks, weekdays and weekend days between two dates.↗ 01.2Weeks Between Dates CalculatorFind full weeks, remaining days and decimal weeks between two dates.↗ 01.3Months Between Dates CalculatorMeasure complete calendar months and leftover days between two dates.↗ 01.4Days From Today CalculatorFind the date 30, 60, 90 or any number of days, weeks or months from today.↗ 01.5Date CalculatorAdd or subtract days, weeks, months or years from any starting date.↗ 01.6Deadline CalculatorFind a due date using calendar days or Monday–Friday working days.↗ 01.7Business Days CalculatorCount working days between two dates using common workweek schedules.↗ 01.8Working Days From TodayFind a future or past date by counting only days in your selected workweek.↗ 01.9Time Duration CalculatorFind hours and minutes between two clock times, including overnight spans and breaks.↗ 01.10Time Addition CalculatorAdd or subtract hours and minutes from a clock time, including day shifts.↗ 01.11Age CalculatorCalculate exact age in years, months and days, plus days alive and next birthday.↗ 01.12Birthday Countdown CalculatorCount the exact days until the next birthday and see what weekday it falls on.↗ 01.13Fullscreen Countdown TimerCreate a beautiful live countdown for any event, then fullscreen it or share the exact timer.↗ 01.14Day of Week CalculatorFind the weekday for any date, plus day-of-year and ISO week details.↗ 01.15Week Number CalculatorFind the ISO week number and Monday–Sunday boundaries for any date.↗
02

Percentage

Calculate percentages, compare values and work backwards without choosing the formula first.

03

Business Math

Price products, compare value, calculate margins, returns, commissions, discounts, taxes and break-even points.

04

Money & Finance

Model borrowing, housing, debt payoff, saving, retirement, investment growth, inflation and interest with assumptions you can change repeatedly.

04.1Loan CalculatorEstimate monthly payment, total interest and total repayment for a fixed-rate loan.↗ 04.2Loan Payoff CalculatorSee how extra monthly principal changes payoff time and interest cost.↗ 04.3Mortgage CalculatorEstimate mortgage principal and interest from home price, down payment, rate and term.↗ 04.4Auto Loan CalculatorEstimate a vehicle loan payment with down payment and trade-in included.↗ 04.5Compound Interest CalculatorModel a starting balance, monthly contributions and compounded growth over time.↗ 04.6Simple Interest CalculatorCalculate non-compounding interest, total amount and interest per year.↗ 04.7Savings Goal CalculatorWork backwards from a target to estimate how much to save each month.↗ 04.8CAGR CalculatorAnnualize growth between a starting value and ending value over time.↗ 04.9Debt Payoff CalculatorEstimate payoff time, total interest and total paid from a fixed monthly payment.↗ 04.10Loan Comparison CalculatorCompare two fixed-rate offers by payment and lifetime borrowing cost.↗ 04.11APR CalculatorEstimate how upfront fees change a loan's annualized borrowing cost.↗ 04.12Inflation CalculatorEstimate future prices and purchasing power under a chosen inflation rate.↗ 04.13Mortgage Affordability CalculatorEstimate a planning-level home price from income, debts and financing assumptions.↗ 04.14Credit Card Payoff CalculatorEstimate payoff time and interest from a fixed card payment with no new charges.↗ 04.15Mortgage Extra Payment CalculatorSee how extra principal can shorten a mortgage and reduce interest cost.↗ 04.16Retirement CalculatorProject retirement savings from your balance, contributions, time and assumed return.↗
05

Work & Pay

Convert gross pay and turn shift times into practical weekly work-hour figures.

06

Everyday

Handle common travel, measurement and personal calculations without unnecessary setup.

07

Home & Construction

Measure spaces and estimate core material quantities with transparent geometry and unit assumptions.

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Designed as a utility

Quiet interface.
Exact answers.

Find the Figure is intentionally simple: calculation first, context second. Core tools run in your browser, results appear immediately, and formulas remain visible when they help you verify the output.

01
Immediate

Results update as inputs change. No submit ritual when one isn’t needed.

02
Transparent

Important formulas, assumptions and breakdowns stay next to the result.

03
Private by default

Core calculator values are processed locally in the browser.

04
Built for people

Keyboard-friendly, responsive controls with no account required.