Test Your Rig · Calculators
Gaming calculators
Instant answers for the numbers gamers actually argue about — sensitivity, pixel density, seating distance, transfer times and memory latency. Everything computes locally as you type; nothing is uploaded.
eDPI
Effective DPI = mouse DPI × in-game sensitivity. The one number that makes sensitivity comparable between players regardless of mouse settings.
Monitor PPI & physical size
Pixel density and the real width and height of a display from its diagonal and resolution.
Viewing distance
The range where the panel above looks sharp: closer than the minimum and individual pixels become visible to 20/20 vision; the far figure is where the display fills a comfortable ~30° of view.
Aspect ratio
Reduce any resolution to its ratio, and resize to a new width or height without stretching.
Download time
How long a game download really takes. Remember: connection speeds are megaBITS per second, file sizes are gigaBYTES — the factor of 8 is where estimates usually go wrong.
RAM true latency
Absolute latency in nanoseconds = 2000 × CAS latency ÷ transfer rate. It's why DDR5-6000 CL30 (10 ns) beats DDR5-5600 CL36 (12.9 ns) despite the bigger CL number.
All calculators run entirely in your browser. eDPI treats sensitivity as a linear multiplier, which holds for most shooters; the viewing-distance figures assume 20/20 (6/6) visual acuity, one arc-minute per pixel; RAM peak bandwidth assumes dual-channel DDR at 8 bytes per channel per transfer.