This random number generator uses the JavaScript Math.random() function, which produces cryptographically-suitable pseudo-random numbers between 0 and 1. The calculator scales and shifts these values to your specified range, then rounds or truncates as needed. For integers, it uses Math.floor() to ensure whole numbers. For decimals, toFixed() ensures the correct precision.
When requesting more unique numbers than possible in your range (e.g., 50 unique numbers from 1-10), the generator allows duplicates rather than failing. This is shown with a warning message.
Math.random() is suitable for games, simulations, and random selection. For security-sensitive applications (encryption, tokens), use a dedicated library like crypto.getRandomValues().
Yes. Set your minimum to any negative value and maximum to any higher value. The calculator handles negative ranges automatically.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.