Rounding Calculator
Round numbers up, down or to decimal places — all methods compared. Round numbers to any decimal place. Compare round-half-up, floor, ceiling and truncate side by side. Free online rounding calculator with examples.
Über Rounding Calculator
Rounding seems trivial until half-values: does 2.5 round to 2 or 3? It depends on the method. This calculator rounds any number to your chosen number of decimal places and shows four methods side by side — standard rounding (half up), always-down (floor/truncate) and always-up (ceiling) — so the difference is explicit. Ideal for financial rounding rules, school assignments and data formatting where the convention matters.
So verwenden Sie Rounding Calculator
- Enter your number.
- Choose how many decimal places to keep.
- Compare the four rounding methods.
- Copy the one your task requires.
Wichtigste Funktionen
- Round to 0–10 decimal places
- Half-up, floor, ceiling and truncate compared
- Handles negative numbers correctly
- Also rounds to whole tens, hundreds, thousands
What is the standard rounding rule?
Why do shops round with floor and ceiling?
Verwandte Werkzeuge aus Mathe-Rechner
Weitere Helfer aus derselben Kategorie.
Percentage Calculator
Three percentage problems solved: of, is-what-percent, and change.
Average Calculator
Mean, median, mode, range and standard deviation in one step.
GCD & LCM Calculator
Greatest common divisor and least common multiple of any numbers.
Prime Number Checker
Test primality and get the full prime factorisation.
Factorial Calculator
Compute n! exactly — even for huge numbers — with digits count.
Logarithm Calculator
Compute logs in any base — 2, e, 10 or custom.