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Marketing Calculators

Cost Per Install (CPI) Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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Verified formula Private

Cost per install

₹20.00

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

How to use the Cost Per Install (CPI) Calculator

The Cost Per Install (CPI) Calculator works out your cost per install in an instant. Enter total ad spend and app installs 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 ad spend.
  2. Enter the app installs.
  3. Read off your cost per install — the calculator updates automatically, with no button to press.

Formula

The Cost Per Install (CPI) Calculator uses the formula:

Cost per install = Total ad spend ÷ App installs

Worked example

For example, with total ad spend of 50,000 and app installs of 2,500, the cost per install is ₹20.00.

Inputs used
Total ad spend 50,000
App installs 2,500
Results
Cost per install ₹20.00

Results are estimates for educational use, not professional advice.

Frequently asked questions

Divide total ad spend by the number of installs. 50,000 spend for 2,500 installs is 20 per install.

It measures how efficiently a campaign drives app installs, key for mobile marketing.

CPI counts installs; cost per acquisition counts deeper actions like a purchase or sign-up.

Improve targeting, creative and store listing, and pause channels with expensive installs.

Enter the total ad spend. Enter the app installs. Read off your cost per install — the calculator updates automatically, with no button to press.

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