Random Number Generator

Q: Decimal precision?

Decimals are rounded to 4 places.

Q: Can I include negatives?

Yes, any range where min < max.

Use our free random number generator to generate random integers or decimals in any range. Choose the count and whether numbers must be unique.

Math

Minimum

Maximum

How many

Number Type

Unique

Formula

Generate random numbers in any range. Supports integers and decimals, with optional uniqueness. Uses JavaScript's Math.random() for cryptographically suitable randomness.

Randomly generated values in [min, max]

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Set the minimum and maximum values.
2Choose how many numbers to generate.
3Select integer or decimal.
4Choose unique or allow duplicates.
5Click Generate.

Examples

5 integers 1-100

1.Generates 5 random integers between 1 and 100.

Result: 42

Frequently Asked Questions

Uses Math.random() which is pseudo-random, suitable for most uses.

Up to 10,000 numbers per generation.

Ensures no duplicate numbers. May fail if range < count.

Decimals are rounded to 4 places.

Yes, any range where min < max.

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CalculateMe Team

Last updated: 2026-07-14

Random Number Generator

Formula

How It Works

Examples

5 integers 1-100

Frequently Asked Questions

Are the numbers truly random?

Max count?

Unique mode?

Decimal precision?

Can I include negatives?

Related Calculators

Random Number Generator

Formula

How It Works

Examples

5 integers 1-100

Frequently Asked Questions

Are the numbers truly random?

Max count?

Unique mode?

Decimal precision?

Can I include negatives?

Related Calculators