Three Part Ratio Calculator

Work out three part ratio instantly with clear inputs, formula shown and shareable results.

About Three Part Ratio Calculator

Add the ratio parts to get the total number of shares, divide the amount by that to find the value of one part, then multiply by each part in turn.

Formula

Three-part split

share = total × part / (a + b + c)

Worked example

With the default values below, Three Part Ratio Calculator returns First share of 200.0000. Change any input above and every figure here is recalculated in your browser.

Inputs used

Total to shareminimum 0: 1,200
First partminimum 0: 2
Second partminimum 0: 3
Third partminimum 0: 7

Results

First share: 200.0000
Second share: 300.0000
Third share: 700.0000
Value of one part: 100.0000

Step by step

1Values used
2Three-part split
3First share= 200.0000
4Second share= 300.0000
5Third share= 700.0000
6Value of one part= 100.0000

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Split 1200 in the ratio 2 : 3 : 7?

There are 12 parts worth 100 each, giving 200, 300 and 700.

Do the shares always add back to the total?

Yes, exactly, because the three fractions a/s, b/s and c/s sum to 1.