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Blended Rate Calculator

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Result

Calculated result 4.6 Based on the values entered.
↗ Finance

Blended Rate Calculator Work out the single blended interest rate across two loans or balances. Enter each balance and its rate, and this calculator returns the weighted-average (blended) rate plus the combined balance and total annual interest. — free online calculator.

Formula

Blended Rate = (Balance₁ × Rate₁ + Balance₂ × Rate₂) ÷ (Balance₁ + Balance₂)
  • Blended Rate Calculator calculates its result from Balance 1, Rate 1 (%), Balance 2, Rate 2 (%). It uses the formula Blended Rate = (Balance₁ × Rate₁ + Balance₂ × Rate₂) ÷ (Balance₁ + Balance₂). Change any input to recalculate the result instantly.
  • The main inputs are Balance 1, Rate 1, Balance 2, Rate 2. Enter them in the units and format shown in the calculator.
  • Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Blended Rate

Inputs
  • Balance 1: 200000
  • Rate 1: 4 %
  • Balance 2: 50000
  • Rate 2: 7 %

Using Balance 1 = 200000, Rate 1 (%) = 4, Balance 2 = 50000, Rate 2 (%) = 7, the calculated result is 4.6.

Sample result: Calculating…

Frequently asked questions

What does the Blended Rate calculate?

Blended Rate Calculator Work out the single blended interest rate across two loans or balances. Enter each balance and its rate, and this calculator returns the weighted-average (blended) rate plus the combined balance and total annual interest. — free online calculator.

Which values should I enter?

Enter Balance 1, Rate 1, Balance 2, Rate 2 using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Blended Rate = (Balance₁ × Rate₁ + Balance₂ × Rate₂) ÷ (Balance₁ + Balance₂).

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026