CalmCalc
MATH

Random Number Calculator

Estimate random number from seed, minimum, maximum with the Random Number Calculator.

Choose a number typeGenerate a repeatable list, with optional uniqueness and sorting.
2 options
RANDOM VALUE79

1 deterministic integer from seed 42

Count
1
Range
1 to 100
Unique
No
Order
Generated order
Values
79
Estimate based on the values shown
MethodGenerates 1–100 repeatable integers or fixed-precision decimals with optional uniqueness and sorting.

Before you use the result

The result depends on the entered values, selected mode, and displayed mathematical assumptions.

CALCULATOR GUIDE

How to use the Random Number Calculator

Estimate random number from seed, minimum, maximum with the Random Number Calculator. It includes Random integers, Random decimals workflows, so choose the one that matches the values you actually know. Use it to check the arithmetic while keeping the displayed method and entered values with your work.

Step by step

  1. For the Random Number, enter seed, minimum, maximum, how many, decimal places. Keep each value in the unit displayed beside its field.
  2. Review the selected Random Number workflow and inputs, then read random number in the result panel.
  3. Change one Random Number assumption at a time to compare scenarios. Use Reset to restore this tool's worked example values.

How the calculation works

Generates 1–100 repeatable integers or fixed-precision decimals with optional uniqueness and sorting.

Worked example

In the Random Number worked example, seed 42, minimum 1, maximum 100, how many 1 produces random number. Generates 1–100 repeatable integers or fixed-precision decimals with optional uniqueness and sorting. Review the displayed units before comparing the result.

Understanding the result

The Random Number reports random number. Use it to check the arithmetic while keeping the displayed method and entered values with your work. The result depends on the entered values, selected mode, and displayed mathematical assumptions.

How to check the answer

Check the Random Number answer by substituting random number back into the stated relationship. Test a simple value such as zero, one, or an equal pair, then confirm that sign, scale, units, and rounding match Generates 1–100 repeatable integers or fixed-precision decimals with optional uniqueness and sorting.

Common questions

What does the Random Number calculate?

Estimate random number from seed, minimum, maximum with the Random Number Calculator.

Which Random Number inputs have the biggest effect?

random number responds directly to seed, minimum, maximum, how many, decimal places. Change one input while holding the others constant to see its effect.

Is the Random Number result exact?

The result depends on the entered values, selected mode, and displayed mathematical assumptions. Recheck seed, minimum, maximum and use random number only for a decision where that level of precision is appropriate.

Formula tests, limits, sources, and guide registry updated September 1, 2026.
INTERPRET THE RESULTRead the math guideCheck assumptions, limitations and comparison methods →