Mathlean · Online math workspace
Rounding calculator
Round numbers or compare ceiling, floor and truncation conventions.
How to use this calculator
Change Round(7/3). Replace Round with Ceil, Floor or Truncate to choose a different integer operation.
Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.
Try it here
Interactive tools require JavaScript. You can read the guide and example without it.
What to know
Ties and negative inputs depend on the selected operation; display precision controls do not change the underlying value.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.