About GearMath
Free, easy-to-use calculators designed to help you make informed decisions about your tech purchases and devices.
8 Free Calculators
Covering phones, displays, power, storage, and more
No Account Required
Just use the tools, no sign-up needed
Privacy Focused
We don't track you or sell your data
Always Free
No premium tiers, no paywalls, ever
Our Mission
We believe that making smart tech decisions shouldn't require hours of research or complex spreadsheets. Our calculators provide instant, accurate estimates for common questions like "What's my phone worth?" or "Can my PSU handle this GPU?"
Why We Built This
We got tired of digging through forums and outdated articles to find simple answers. So we built the tools we wished existed — straightforward calculators that give you the info you need in seconds, not hours.
How It Works
Each calculator uses real-world data and industry-standard formulas to provide accurate estimates. We regularly update our data to reflect current market conditions and technology standards. All calculations happen locally in your browser — your data never leaves your device.
What's Next?
Have questions or suggestions? Get in touch