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Math Calculators

Ratio Division Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
Verified formula Private

Share A

600.00

Share B
400.00

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Ratio Division Calculator

The Ratio Division Calculator works out your share a, along with 1 related figure in an instant. Enter total amount to share, ratio part a and ratio part b and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the total amount to share.
  2. Enter the ratio part a.
  3. Enter the ratio part b.
  4. Read off your share a, together with share b — the calculator updates automatically, with no button to press.

Formula

The Ratio Division Calculator uses the formula:

Share A = Total amount to share × Ratio part A ÷ (Ratio part A + Ratio part B)

Worked example

For example, with total amount to share of 1,000, ratio part a of 3 and ratio part b of 2, the share a is 600.00.

Inputs used
Total amount to share 1,000
Ratio part A 3
Ratio part B 2
Results
Share A 600.00
Share B 400.00

Results are estimates for educational use, not professional advice.

Key terms explained

Ratio
A comparison of two quantities showing how many times one contains the other.

Frequently asked questions

Add the ratio parts, then give each share its fraction of the total. Splitting 1000 in 3:2 gives 600 and 400.

Each part's share is total × that part ÷ the sum of parts. A 3:2 ratio means three fifths and two fifths.

Sharing profits, bills, ingredients or inheritances fairly according to agreed proportions.

Yes. The same method works for any two-part ratio; just enter the two parts and the total to split.

The Ratio Division Calculator uses the formula: Share A = Total amount to share × Ratio part A ÷ (Ratio part A + Ratio part B). For example, with total amount to share of 1,000, ratio part a of 3 and ratio part b of 2, the share a is 600.00.

Enter the total amount to share. Enter the ratio part a. Enter the ratio part b. Read off your share a, together with share b — the calculator updates automatically, with no button to press.

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