About beancuit
We build on three principles: accurate standards, transparent sources, and calculations that store nothing.
What beancuit is
beancuit is a free collection of everyday calculators for everyone, everywhere. Math, money and health tools work in any country, alongside Korean life calculators like Korean age and pyeong. You can use them right away without signing up, and they're built to work well on your phone.
Our principles
- We show our sources. Formulas and standards follow original materials such as laws, public utility rate tables and medical society guidelines, and every page lists its sources.
- We note when we checked. When rates or rules change, we update the formulas and the review date.
- We don't store what you enter. Every calculation runs in your browser, and nothing you enter is sent to a server.
- Results are for reference. We can't cover every discount or exception, so please confirm with the relevant authority before making important decisions.
Our calculators
- Scientific Calculator — sin cos log √ ^ π, with a degree/radian keypad
- Percentage Calculator — X% of Y, what % one number is of another, % change
- Unit Converter — Length, weight and temperature in every unit
- Loan EMI Calculator — Monthly payment, total interest and repayment for any loan
- Compound Interest Calculator — Future value of monthly investing and lump sums
- Bill Split & Tip Calculator — Split the bill, add a tip and round up to an easy amount
- BMI Calculator — Body mass index, weight category and healthy weight by height
- BMR & Calorie Calculator — Basal metabolic rate and daily calories by activity
- Korean Age Calculator — International, year and counting age, plus days to your next birthday
- Pyeong Calculator — Pyeong ↔ ㎡ ↔ ft² ↔ tatami, plus Korean apartment size charts
- Korea Electricity Bill Calculator — KEPCO residential tiered rates, VAT and fund included in the bill