Practical calculators for journalists and media professionals — file sizes, download times, reading speed and more.
Free mean calculator: find the arithmetic, geometric, and harmonic mean of up to 50 numbers instantly, all in one tool. Shows…
Free mean median mode calculator: instantly find the mean, median, mode, range, and midrange of up to 50 numbers with step-by-step…
Calculate accuracy using three methods: standard diagnostic accuracy (TP/TN/FP/FN confusion matrix), prevalence-adjusted…
Calculate the probability that a value is below or above X using the normal distribution. Find P(x < X), P(x > X), z-score,…
Free ratio calculator: find a missing value in A:B=C:D proportions, simplify any ratio to lowest terms, or compute golden…
Free median calculator: find the middle value of up to 50 numbers instantly. Supports plain numbers, 25+ world currencies,…
Free average calculator: compute the arithmetic mean of up to 50 numbers instantly. Supports plain numbers, 25+ world currencies,…
Calculate how long it takes to download a file based on file size and internet speed. Supports metric (MB, GB) and binary…
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