Overview
What is GearCalc?
GearCalc : Estimate the speed of a car based on the gear ratios and other parameters.
In depth
A closer look at GearCalc
GearCalc is a program that calculates theoretical maximum speeds in each gear and speed per 1000 RPM (revolutions per minute), given the maximum RPM of the engine (redline), the gear ratios, tyre size and the differential ratio. It also produces a chart of RPM values for every 10 Km/h increment in metric mode or every 5 MPH increment and gear up to the redline. Finally, it also calculates the rev drop at each gear change. Entry of tyre size can be in the 185/70x14 style, which will then automatically calculate the diameter and circumference, or if the tyre is not marked in this style of sizing, actual measurement of diameter or circumference (the most accurate method) can be entered.
Verdict
Should you download GearCalc?
GearCalc runs on
Windows 10/11
and is available under the
Freeware
license
— the installer is 516 KB.
We’ve catalogued it under
General.
✓
Verified clean. Every GearCalc build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
Sponsored
At a glance
GearCalc specifications
- Publisher
-
Peter Ogden
- Last updated
- Apr 30, 2026
- License
- Freeware
- Operating system
- Windows 10/11
- File size
- 516 KB
- Price
- Free
- Page views
- 1205
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