Math · Statistics

Mean Calculator

Compute arithmetic, geometric, harmonic and weighted averages — plus median, mode, range, variance and standard deviation of any list of numbers.

Numbers (separate by comma, space, semicolon or new line)

Highlighted measure

Weighted mode — enter each value as value:weight, e.g. 80:2, 90:1

Arithmetic: x̄ = Σx₀/n Geometric: G = (Πx₀)^1/n Harmonic: H = n / Σ(1/x₀) Weighted: x̄ₔ = Σ(w₀x₀)/Σw₀
Median: middle value of the sorted list (average of the two middle ones for even n). Variance: s² = Σ(x₀ − x̄)² / (n − 1).

Five averages

Arithmetic, geometric, harmonic, weighted mean and median in one screen.

Full spread

Mode, range, variance and standard deviation for a complete statistical picture.

Flexible input

Paste a comma-separated list, spaces or new lines — anything works.

Instant results

Every keystroke recalculates all measures in real time.

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