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Ratio Calculator

Solve proportions — find the missing value in a ratio. Free online calculator with instant results — no login needed.

D (A:B = C:D)

What is the Ratio Calculator?

Solve proportions — find the missing value in a ratio. Free online calculator with instant results — no login needed.

Enter your values above and the result updates instantly. Use it for a quick, accurate estimate.

Formula

A : B = C : D → D = B × C ÷ A

Example

D (A:B = C:D)

FAQs

What is the Ratio Calculator?

Solve proportions — find the missing value in a ratio. It is a free online tool from BhutyCalc that runs entirely in your browser.

Is the Ratio Calculator free to use?

Yes. BhutyCalc's Ratio Calculator is completely free, needs no login or signup, and works instantly on any phone.

How accurate is the Ratio Calculator?

It uses standard formulas and gives an accurate result for the values you enter. For important financial or health decisions, always confirm with a qualified professional.

Who should use the Ratio Calculator?

Anyone who needs a quick, reliable answer — students, professionals, and anyone planning money, health or everyday decisions. Just enter your values and read the result.

Does the Ratio Calculator work on mobile?

Yes. It is mobile-first and works on any phone or tablet, without installing an app. You can also switch the page to Hindi with the हिंदी button.

Does the Ratio Calculator store my data?

No. Every calculation runs inside your browser. Nothing you type is saved or sent to any server, so your numbers stay private.

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