Mathlean · Online math workspace
Interquartile range calculator
Measure the distance between the upper and lower quartiles.
How to use this calculator
Replace the data list. For 1 through 8 the interquartile range is 4.
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
Quartile interpolation conventions affect the answer; an IQR is not a standard deviation.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.