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Free instant calculators for gamers.

Gaming Calculator

Three fast, free tools for gamers: estimate download time, convert FPS to frame time, and calculate mouse eDPI. Everything is calculated instantly in your browser.

Download Time Calculator

Estimate how long a download will take based on file size and connection speed.

Quick size presets
Quick speed presets
Estimated Time —

Real download time may vary depending on server load, overhead, and network conditions.

FPS / Frame Time Calculator

Convert between frames per second and milliseconds per frame.

Common Values

eDPI Calculator

Calculate your effective DPI from mouse DPI and in-game sensitivity.

eDPI —

Cross-game eDPI comparisons are only meaningful between games with comparable sensitivity scales — eDPI is not a universal equivalence.

FAQ

Is this calculator free and accurate?

Yes, it's free to use. The math is exact for the formulas used (byte/bit conversion, FPS/ms, DPI × sensitivity) — real-world results can still vary, as noted below each tool.

Does the download time include real-world overhead?

No. It's a theoretical estimate based on file size and connection speed alone. Actual downloads are also affected by server load, protocol overhead, and network conditions.

Is a lower or higher eDPI better?

Neither — eDPI is a way to describe your mouse setup, not a ranking. Comparing eDPI across different games is only meaningful when those games use comparable sensitivity scales.

Do I need to install anything?

No. Everything runs directly in your browser — no download, no account, no data sent anywhere.