Probability Calculator
Work out probability, odds and the chance over repeated trials.
How to use Probability Calculator
- Enter favourable outcomes
- Enter total outcomes
- Add trials
About Probability Calculator
Probability Calculator is a free online online tool that lets you work out probability, odds and the chance over repeated trials. It runs entirely in your web browser, so there is nothing to download or install and you never need to create an account.
Simply open the tool, add your content, and get your result in seconds. A live preview lets you check the result before you download it.
Probability Calculator is 100% free with no limits, no watermarks and no sign-up. Your input is processed securely in your session and is never stored on our servers. Popular searches for this tool include Probability Calculator, Odds Calculator, Chance Calculator.
Features
- ✓100% free with no usage limits
- ✓Works in any browser — nothing to install
- ✓Instant live preview of your result
- ✓Mobile, tablet and desktop friendly
Benefits
- ★Save time with fast, one-click processing
- ★No software, no registration and no email required
- ★Your data stays private — nothing is stored
- ★Completely free, with no hidden costs or watermarks
- ★Use it anywhere, on any device with a browser
Frequently asked questions
Is Probability Calculator free to use?
Yes, Probability Calculator is completely free with no usage limits, no watermarks and no sign-up required.
Do I need to install software or create an account?
No. The tool runs entirely in your web browser — there is nothing to download and no account to create.
Is my data stored or shared?
No. Your input is processed securely in your session and is never stored or shared.
How do I use Probability Calculator?
It takes just a few steps: enter favourable outcomes; enter total outcomes; add trials.
Does Probability Calculator work on mobile and Mac/Windows?
Yes. It works in any modern browser on phones, tablets, Windows, macOS and Linux.