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`M = pi * t *[ ( "d2" /2)^2 - ( "d1" /2)^2] * "mD" `

Enter a value for all fields

The **Weight or Mass of a Ring** calculator computes the mass or weight of a ring (e.g. circular gasket) based on the thickness (t), outer diameter, inner diameter* flattened ring* and the mean density.

**INSTRUCTIONS:** Choose the preferred length units and enter the following:

- (
**t**) Thickness - (
**d1**) Inner diameter - (
**d2**) Outer diameter

**RING Mass or Weight:** The calculator computes the mass of the ring in grams. However this can be automatically converted to any other mass and weight units (e.g. troy ounces) via the pull-down menu.

The equation for the mass of a ring is the volume of a ring times the mean density as follows:

`M = pi * gT *[ (d_2/2)^2 - (d_1/2)^2] * mD`