Advanced Mouse Weight Simulator
Race two mouse weights against each other using our dual Ghost physics engine. Visualize live vector forces and calculate your Fitts's Law throughput.
Dual-Simulation Engine
Race two physics simulations at once! The Purple Crosshair is your Primary Mouse. The Green Crosshair is the Ghost Mouse. Flick to the targets and visually prove how mass creates devastating inertia.
Fitts's Law in Aiming
Fitts's Law is a predictive model of human movement primarily used in human-computer interaction and ergonomics. It predicts the time required to rapidly move to a target area. Our engine calculates your Throughput (Bits/second) by measuring the Index of Difficulty (ID) of the target against your time to successfully acquire it.
Heavier mice lower your Throughput because the massive kinetic energy generated during a flick causes overshoot. Your brain must expend extra milliseconds performing "micro-corrections" to fight the static friction and bring the heavy crosshair back to the target center.
Live Vector Force Rendering
If you toggle on Vector Forces, the Canvas engine draws real-time arrows directly onto the crosshairs. The Green Vector represents your velocity. The Red Vector pointing backwards represents Kinetic Friction and Inertia fighting against your hand. Notice how the Red Vector on a 150g mass is significantly larger, visually proving that you are doing more physical work to stop the mouse.
Why Ultralight Mice Dominate Esports
By using the Dual-Simulation Ghost Mode, you can literally race a heavy mouse against a light mouse. Set the primary to 130g and the Ghost to 40g. When you flick, the 40g Ghost stops on a dime, while the 130g primary drifts like a car on ice. This physical phenomenon is why over 80% of professional Valorant and CS2 players use mice weighing less than 65 grams.