Money weight calculator

Multiply a counted denomination by its unit mass and face value.

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Money weight calculator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Number of identical notes or coins

Mass per piece (g)

More inputs and assumptions

Face value per piece

Answer

…

Multiply a counted denomination by its unit mass and face value.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Mass per note or coin is your input, not an assumed currency specification. Mixed denominations require separate calculations; wear and packaging are not included.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

Scratch calculator

Check another calculation

Use +, −, ×, ÷, parentheses and %. A percentage is divided by 100. This does not change the main tool.

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Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-26

Using Money weight calculator

Multiply a counted denomination by its unit mass and face value.

Mass per note or coin is your input, not an assumed currency specification. Mixed denominations require separate calculations; wear and packaging are not included.

Next: Count cash denomination as you type

A worked example

Example inputs: number of identical notes or coins = 100, mass per piece (g) = 1, face value per piece = 1. Currency mass (g) = 100.

Before you use the result

Mass per note or coin is your input, not an assumed currency specification. Mixed denominations require separate calculations; wear and packaging are not included.

Example results for number of identical notes or coins

These examples use Mass per piece (g): 1; Face value per piece: 1. They are reference calculations, not recommended settings.

Number of identical notes or coins	Currency mass (g)
50	50
100	100
200	200

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ToolOctopus. “Money weight calculator.” Updated 2026-09-26. https://tooloctopus.com/money-weight-calculator.

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