Online Calculator
Type an expression, or use the loan, BMI and percentage tools.
Runs entirely in your browser
Loading the tool…
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Functions: sqrt cbrt abs ln log log2 exp sin cos tan asin acos atan sinh cosh tanh floor ceil round sign fact. Constants: pi, e
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- —Per month
- —Total interest
- —Total paid
- —Payments
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Type the whole expression rather than pressing one button at a time:
(1200 * 1.07^5) / 12 evaluates exactly as written, with correct operator
precedence and right-associative powers. Functions include sqrt, ln, log, exp, the
trig family with a degrees/radians switch, floor, ceil, round and factorial, plus the
constants pi and e.
The tabs below cover the three specialised calculations people look up most: monthly loan payments, body mass index, and the four percentage questions.
How to use it
- Type an expression and press Enter. The result appears immediately.
- Switch between degrees and radians for trigonometry.
- Use the Loan, BMI or Percentage tabs for those specific calculations.
Questions
How is -2^2 evaluated?
As -4. The power binds tighter than the leading minus, which matches mathematical convention and most calculators. Write (-2)^2 if you want 4.
What does % do here?
Modulo, the remainder after division, so 10 % 3 is 1. For percentage arithmetic use the Percentage tab, which handles 'what is 15% of 200' and its three siblings.
How accurate is the loan calculation?
It is the standard amortisation formula on a fixed rate, compounded monthly. Real quotes add fees, insurance and rounding rules, so treat the figure as a close estimate rather than an offer.
Your data stays on your device
Everything above runs inside your browser as WebAssembly compiled from Rust. Nothing you type is uploaded, logged or stored on a server. There is no server. You can load this page once, go offline, and it still works.