justyourcalculatorRandom Number Generator
Pick one random number or a whole list, with or without repeats.
- 100% Free
- Instant Results
- No Sign Up
Random Number Generator
Random integers or decimals in any range
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- Calculators
- 204+
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- Results as you type
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How the random number generator calculator works
Set a lower and upper limit (both included) and how many numbers you want, then press Generate. Integers are whole numbers; choose Decimal and a number of decimal places for values like 3.72.
Turn off Allow duplicates to draw like names from a hat: each value can only come up once, which is handy for lottery picks, raffles or random samples. You can sort the results in ascending or descending order.
Numbers come from your browser's cryptographic random generator (crypto.getRandomValues) with rejection sampling, so every value in the range is equally likely and there is no modulo bias.
Using and checking your result
Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.
Share links may contain your input values. Anyone with the URL can read them; avoid sharing sensitive personal or financial information.