Skip to main content

Statistics Calculator

Math Calculators

Mean, median, mode, variance, standard deviation and quartiles

Quick Answer

Statistics Calculator: Mean, median, mode, variance, standard deviation and quartiles. Mean x̄ = Σxᵢ ÷ n · Median = middle value · Mode = most frequent.

Loading

Was this tool helpful?

How to Use

  1. Enter values or expressions: type directly into the Statistics Calculator — keyboard friendly.
  2. Instant results: everything computes live as you type, no button needed.
  3. Follow the steps: the result panel shows full working and formula substitution.
  4. Copy or recompute: one-click copy; change any input to recalculate instantly.

Key Points

  • Statistics Calculator is a free online math tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Mean, median, mode, variance, standard deviation and quartiles.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Descriptive statistics (x₁…xₙ)

Mean x̄ = Σxᵢ ÷ n · Median = middle value · Mode = most frequent
Population variance σ² = Σ(xᵢ−x̄)² ÷ n · Sample variance s² = Σ(xᵢ−x̄)² ÷ (n−1)
Std dev = √variance · Range = max − min

FAQ

How do I use the Statistics Calculator?
Open the page and fill in the input fields — results update automatically. Mean, median, mode, variance, standard deviation and quartiles.
Are the results accurate?
Yes. All calculations use standard mathematical formulas and are verified for accuracy.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required — just open and use.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. All calculations run locally in your browser. Nothing is uploaded or stored.

Related Tools

HOTBasic CalculatorAdd, subtract, multiply, divide with full keyboard supportHOTScientific CalculatorTrig, log, exponent, factorial · DEG/RAD modesHOTPercentage CalculatorPercent of, percentage share, and percent changeFraction CalculatorAdd, subtract, multiply, divide fractions with simplification

Related Guides

Source & Updates

Standard mathematical formulas. All logic verified. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Cite this page: YiJianSuan. Statistics Calculator[EB/OL]. https://www.yijiansuan.com/en/c/math/statistics

Results provided by this tool are for reference only and do not constitute professional advice.