FinCalculator
Business & SME APIWeb Calculator UI

Free Profit Margin Calculator API (2026)

Business profit margin analysis API.

Interactive API Playground & Live Test

GET/api/v1/profit-margin

Query Parameters

Gross revenue in ₹

Cost of goods sold in ₹

Operating expenses in ₹

Non-operating income in ₹ (default: 0)

Interest expense in ₹ (default: 0)

Tax expense in ₹ (default: 0)

curl -X GET "https://fincalculator.in/api/v1/profit-margin?revenue=1000000&cogs=600000&opex=200000&otherIncome=0&interest=0&tax=0" \
  -H "Accept: application/json"
Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...

Request Parameters Schema

ParameterTypeRequiredDescription / Notes
revenuenumberRequiredGross revenue in ₹
cogsnumberRequiredCost of goods sold in ₹
opexnumberRequiredOperating expenses in ₹
otherIncomenumberOptionalNon-operating income in ₹ (default: 0)
interestnumberOptionalInterest expense in ₹ (default: 0)
taxnumberOptionalTax expense in ₹ (default: 0)

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Frequently Asked Questions (FAQs)

Is the Free Profit Margin Calculator API free to use in production apps?
Yes! All FinCalculator REST APIs are completely free, zero-auth, open-CORS, and edge-cached for high performance across global web and mobile applications.
What is the rate limit for /api/v1/profit-margin?
Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.