This online calculator is designed to calculate Diametral Pitch (P) with the well-known Number of Teeth and Pitch Diameter.

The diametral pitch of a gear is the number of teeth in the gear per inch of pitch diameter.

The formula for calculating Diametral Pitch (P) with the well-known Number of Teeth and Pitch Diameter is presented below:

where P -  diametral pitch,
         N - number of teeth,
         D - pitch diameter.

In order to calculate the diametral pitch, enter the known value of number of teeth (N),  pitch diameter (D) and click the "CALCULATE" button.

Number of teeth N =
Pitch diameter D =
	1 2 3 4 5 6 7  (Decimal Places)
Result =

Back to Gear Calculators