Free · Mass conversions

Pounds to Grams Conversion Calculator

Convert pounds to grams with editable results, unit choices and a worked example.

Formula & worked example
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Calculator inputs

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How to use this calculator

Enter the known values in the units shown. Results update as you type.
Edit a calculated value to solve backwards, or lock a value to hold it fixed.
Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

1 lb = 453.59237 g. These are avoirdupois pounds, the common pound used for body weight and many goods. Troy units use different relationships. Enter one known measurement to calculate its equivalent; editing the result allows conversion in the other direction.

1 lb = 453.59237 g

Worked example

Enter these known values and leave the other values blank.

Mass/weight in pounds: 1 lb

Mass/weight in grams: 453.6 g

Assumptions and limitations

These are avoirdupois pounds, the common pound used for body weight and many goods. Troy units use different relationships.
The worked example uses the default units shown. Changing a unit selector preserves the same quantity; inspect the selected unit before entering a new value.

Common questions

What should I check when converting mass?

These are avoirdupois pounds, the common pound used for body weight and many goods. Troy units use different relationships.

Will rounding change the measurement?

The unit conversion preserves the underlying quantity. Display rounding can hide smaller digits, so retain suitable precision for the original measurement and its intended use.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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