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The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
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Gearing Calculator - RPM to km/h - mph with Auto Shift Tracer   Enter Gear and Diff Ratios and drag RPM Slider

RPM gauge diagram Speedometer gauge diagram
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RPM
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Drag Slider or Click individual Gear Buttons to change gears
Gear Max RPM

Top Gear
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For DSG or VAG transmissions with a final ratio for each gear.


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Edit Gear Ratios and compare Multiple Gear Sets
Tire Diameter

Diff Ratio






Share Current Calculation






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When tracing, Shift AT entered RPM

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When tracing, Shift so the RPM drops TO entered RPM

RPM
Slow Fast


Gear ratio graph diagram



Gear ratio RPM shift point graph diagram

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Shift AT entered RPM

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Shift so the RPM drops TO entered RPM

RPM
RPM



Max RPM RPM Increments

Tire
R

See also: Printable Full Scale Degree Wheels Dial in your cam - and Printable Timing - Degree Tape

Enter Diff + Gear Ratios and Tire Diameter, then drag RPM slider to calculate speed from RPM.
Drag Max RPM slider to adjust the range of the RPM and km/h Gauges.

Enter Shift at RPM, select gear to shift to and hit Shift and Trace to run up through the gears recording shift point RPM and km/h.

Compare tires Check Compare and enter alternate Tire Diameter or Diff Ratio to compare. Speedometer will display a second needle for the comparison.

Compare Gear Sets Edit gear ratios, or enter (and save) multiple ratio sets, then click Compare Ratios to display multiple graphs and compare ratios.

Transfer Saved Transmissions Load Transfered Transmissions





DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
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Inch or Metric? 👈
The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
Directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.



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