Random Number Generator
Generate random numbers in a custom range, with or without repeats, instantly.
Random Number Generator
Set your range and options
Result
Set your range and clickGenerateto see random numbers.
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How to Use This Calculator
Step-by-step guide to get accurate results
1
What is a Random Number Generator?
A Random Number Generator (RNG) is an online tool that creates unpredictable numbers within a selected range. It uses a mathematical algorithm to instantly generate random values that help in decision-making, math tasks, coding, simulations, gaming, and everyday choices. RNGs are fast, unbiased, and easy to use on any device.
2
How to Use the Calculator
Enter the Minimum Value
Provide the lowest number of your desired range.
Enter the Maximum Value
Provide the highest number of your desired range.
Select Quantity (Optional)
Choose how many numbers you want to generate at once.
Click Generate
The calculator produces random numbers instantly.
Review Results
Double-check your range and use the generated numbers as needed.
3
Key Features
Instant Results
Numbers appear within milliseconds.
Custom Range
Enter any minimum and maximum values.
Multiple Outputs
Generate one or many numbers at once.
Uniform Algorithm
Results are unbiased.
Clean Interface
Beginner-friendly and easy to use.
Free Online Tool
No registration or downloads needed.
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Use Cases
Math & Statistics
Probability, sampling, and classroom exercises.
Games & Contests
Lucky draws, dice rolls, and random selections.
Coding & Software Testing
Simulations, test data creation, and debugging.
Education
Random roll calls, group assignments, and activities.
Daily Decisions
Choosing tasks, meals, or activities.
Research
Creating unbiased samples for studies.
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Example Calculations
Example 1
Range: 1–100, Output: 57 (random)
Example 2
Generate 5 numbers, Range: 10–50, Output: 12, 34, 49, 28, 20 (random)
Example 3
Dice Simulation (1–6), Output: 4 (random)
Frequently Asked Questions
What is a Random Number Generator used for?
It creates unpredictable numbers for math, coding, contests, and general tasks.
Is this tool free?
Yes, completely free.
Are the numbers truly random?
They are pseudo-random, suitable for everyday use.
Can I generate multiple numbers?
Yes, many tools support quantity selection.
Can I use negative numbers?
Yes, depending on the tool.
Are results unbiased?
Yes, they follow a uniform distribution.
Do I need software installation?
No, it works online.
Can I use RNG for school projects?
Absolutely.
Is it safe for online contests?
Yes, but for high-stakes events, use verifiable tools.
Is it mobile-friendly?
Yes, works perfectly on phones and tablets.
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How to use this generator?
- 1Enter the minimum and maximum values for your range.
- 2Enter how many random numbers you want to generate.
- 3Choose whether to allow repeats or not.
- 4ClickGenerateto see your random numbers instantly.