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Blended Rate Calculator
Combine two or more loans into a single weighted-average ‘blended rate’ to compare your overall borrowing cost.
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What is a blended rate?
A blended rate is the weighted-average interest rate across two or more loans or debts, calculated based on each loan’s balance. It gives you a single figure representing your overall cost of borrowing across multiple debts.
How this calculator works
Enter the balance and interest rate for each loan (a third loan is optional). The calculator multiplies each balance by its rate, sums those amounts, and divides by the total combined balance to find the blended rate.
This is a general finance tool useful for comparing debt consolidation options or understanding combined mortgage costs, and is for planning purposes only.
Last reviewed August 2026