This total weight and amount per unit of mass to total amount calculator can be used to calculate any quantity total from the total weight in one type of mass measurement unit, and the unit mass quantity in another type.

# Weight & Mass Measurement Converters & Calculators

Online web tools for weight or mass measurement conversions and calculations

## Gross – Net to Tare Weight Calculator

This tool will calculate the tare weight (TW) by subtracting the net weight (NW) from the gross weight (GW) reading you entered and convert any combination of weight (mass) units for each weight value.

## Net + Tare to Gross Weight Calculator

This tool will calculate the gross weight (GW) by adding the net weight (NW) to the tare weight (TW) reading you entered and convert any combination of weight (mass) units for each weight value.

## Gross – Tare to Net Weight Calculator

This tool will calculate the net weight (NW) by subtracting the tare weight (TW) from the gross weight (GW) reading you entered and convert any combination of weight (mass) units for each weight value.

## Universal Amount per unit of Weight Converter

This amount per unit mass ratio converter and conversion scale can be used to convert any quantity per unit weight of your choosing, and provide the equivalent amount per unit weight in different units.

## Dead Weight Tester Pressure & Area to Mass Calculator

This online tool will calculate the required mass to be added to a dead weight tester pressure calibrator by entering the target pressure, the effective area of the piston-cylinder and the local gravity.

## Dead Weight Tester Mass & Area to Pressure Calculator

This online tool will calculate the pressure generated by a dead weight tester pressure calibrator by entering the total mass of added weights, the effective area of the piston-cylinder and the local gravity.

## Mass Converter

This conversion tool will convert a measurement of mass from one unit to another. Use this tool to convert grams, ounces, pounds, kilograms, stones and tons.

## Weight to Mass Calculator

This tool calculates the mass of an object from the measured weight and local gravity and displays a dynamic conversion chart.

## Mass to Weight Calculator

Use this calculator to determine the weight of an object from its mass and local gravity and show a conversion chart that auto-updates with change in input.