Response Times Range Calculator

Find the difference between the slowest and fastest recorded response times.

How to use Response Times Range Calculator

1. Enter Response Times Values as matching lists where weights are used; separate numbers with commas, spaces, semicolons or new lines. 2. Keep all observations on one unit or scoring scale. 3. Select Calculate or press Enter, then read range. 4. Copy result copies the answer; Reset clears the form. Do not use thousands separators inside lists.

Why use this tool?

See the full timing span in a recorded sample before examining unusual slow observations.

How the calculation works

Range = maximum observation − minimum observation. It uses the two extremes and does not describe the distribution between them. Enter non-negative timings in the same unit, such as milliseconds. Results use that unit. This page processes your list; it does not run a website speed test or enforce a service-level agreement. Results use up to six decimal places, or six significant digits in scientific notation for nonzero magnitudes below 0.000001. Calculations use browser floating-point arithmetic. Each list supports up to 20,000 numbers. Entry and result magnitudes must not exceed 9,007,199,254,740,991; unrepresentable variance or weighted products are rejected. General descriptive-statistics reference: https://www.itl.nist.gov/div898/handbook/eda/section3/eda356.htm. Weighted conventions are defined explicitly on this page.

Example

For response times 100,120,130,450, the range is 350.

Practical tip

Check whether the largest and smallest values are valid observations. One mistyped extreme can dominate the range.