### A little help for a simple application ;-)

Displacement:

- Dimensions in imperial units. You can give decimal fractions or natural.
- Dimensions in metric units.
- You can convert between different units of capacity.
- The difference resulting from the conversion to inches in natural fractions.

Piston speed:

- Rotational speed (revolutions per minute).
- Rotational speed (revolutions per second)
- Mean piston speed (m/s).

Lenght:

- Dimensions in imperial units. You can give decimal fractions or natural.
- Dimensions in parent units of measurement.
- The difference resulting from the conversion to inches in natural fractions.

Power:

**hp(I)**- Mechanical horsepower (imperial). More**hp(M)**- Metric horsepower (PS, cv, hk, pk, ks, ch). More**hp(E)**- Electrical horsepower. More**kW**- Kilowatt (SI)**W**- Watt (SI unit). More

Settings:

- Number of decimal places for dimensions.
- Number of decimal places for volume.
- Accuracy in natural fractions of inches. Deselect to get the results in decimals.
- Rounding of natural fractions (down, to the lowest, up).