I. Measurement Data
  Indicated value on your meter     [0.1 to 999.9]
  Reference (actual) value     [0.1 to 999.9]
II. Conversion mode
  MPH speedo to read in Km/h  
  Km/h speedo to read in MPH  
Notes:
1.

The measurement must be done with the SH uninstalled or set in Transparent mode (click Here for instructions).

2.

It is recommended to note the indicated speed at about 100km/h (60mph) actual speed.

3.

The values can be in any speed or distance units of measure, but the two values must be in the same units.

4.

On most vehicles the speedometer has more factory error than the odometer. Therefore if you need highly accurate speedo, use the speedo for measurements. Otherwise use the odometer/trip meter.

How to use the calculator:
- Enter your measurement data
- Select the conversion mode if necessary
- Press 'Calculate' and then 'Generate..'
 
 
  


 
Total Error    %
 

SH Calibration Value

 

 %

 

SH Conv. mode Value