Random Decimal Number Generator

Generate random decimal numbers in a min/max range with configurable precision

Count:

Min:

Max:

Precision:

Generated output

Output will appear here...

What is Random Decimal Number Generator

Written by Giorgos Kostas. Last reviewed: April 18, 2026

Random Decimal Generator mints random floating-point numbers in an inclusive-exclusive range with a configurable number of decimal places.

Paste `min max` on the first line (e.g. `0 100`) and pick precision in the toolbar. Great for Monte Carlo seeds, test fixtures, and statistical simulations.

Why use it

Seed Monte Carlo or statistical simulations.
Populate sliders and numeric inputs with test data.
Mock sensor readings for UI prototypes.
Generate fixture values for numeric validators.
Build demo charts with plausible ranges.

Features

Inclusive-min / exclusive-max range
Precision 0-15 decimal places
Up to 10,000 values per batch
Uniform distribution
Local-only Random Decimal Number processing keeps data in-browser

How to use Random Decimal Number Generator

Enter range. Type 'min max' (e.g. 0 100).
Set precision. Pick decimal places.
Run. Copy the list.

Example (before/after)

Input

0 1

Output (precision=4, count=3)

0.2837
0.9145
0.5062

Common errors

Missing range

Input needs 'min max'.

Fix: Provide both numbers separated by space or comma.

min >= max

Invalid range.

Fix: Use a strictly increasing range, e.g. 0 100.

FAQ

Is the range inclusive?

min is inclusive; max is exclusive (standard Math.random() semantics).

What precision is supported?

0 to 15 decimal places.

How many per batch?

Up to 10,000 decimals.

Is it statistically uniform?

Yes — uniform over [min, max).

Is input uploaded?

No — decimals are sampled from Math.random in your browser and never transmitted.

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