What is a random number generator?
This random number generator creates values within the inclusive range you specify. Choose how many results to generate and whether values should be integers or decimals. It uses the browser random-number source and is not intended for cryptographic keys, gambling fairness or security-sensitive use.
Formula and calculation method
For integers, a value is selected uniformly from the inclusive interval [minimum, maximum]. Decimal mode scales a random value across the requested range.
The result is only as reliable as the inputs and assumptions. This tool is educational and does not replace professional financial, medical, legal or academic advice.
How to use this calculator
- Enter the values requested in the calculator.
- Review the result panel; it updates when an input changes.
- Change one assumption at a time to compare scenarios.
- Check the formula and limitations before acting on the estimate.
Frequently asked questions
Is this random number generator free?
Yes. You can use this calculator in your browser without creating an account.
How accurate is the result?
It applies the displayed formula to the values you provide. Real-world outcomes can differ because of fees, changing rates, individual circumstances or rules not represented in this estimate.
Are my inputs stored?
No. The calculation runs locally in your browser and the values are not submitted to FastSEOHub.