CS2 eDPI & cm/360 Calculator
Calculate eDPI, cm/360 and inches/360 from DPI, sensitivity and m_yaw with assumptions clearly stated.
Mouse settings are personal. A useful calculator lets you reproduce a setup, compare nominal turning distance and spot mistaken DPI or sensitivity values; it cannot tell you the one best sensitivity for your play style.
Keep mouse movement consistent.
eDPI helps compare DPI × in-game sensitivity. cm/360 additionally assumes the Source default yaw factor unless you change it.
RESULT / READOUT
eDPI and cm/360 answer different questions
eDPI is simply DPI multiplied by in-game sensitivity. It makes numerical comparisons convenient, but the same eDPI can be configured through different hardware settings.
cm/360 adds the Source yaw factor and expresses the approximate mouse movement for one complete horizontal turn. At the default m_yaw of 0.022, the formula is 360 × 2.54 / (DPI × sensitivity × yaw).
Know the assumptions
The calculation assumes the specified yaw factor, linear input and consistent game behavior. Changes to mouse acceleration or unusual input processing can make a physical measurement differ.
If your setup uses custom m_yaw, provide it rather than comparing your calculated cm/360 against someone using default yaw.
A practical calibration method
Measure the amount of mousepad travel needed for a complete turn in a controlled environment. Repeat from the same starting orientation. A physical ruler is more reliable than guessing from a short flick.
If you change DPI, sensitivity or yaw, update one variable at a time and write down your previous settings before experimenting.
Related resources
Read the field guides for step-by-step troubleshooting or return to the complete toolkit.