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Blended Interest Rate Calculator

What's your real, blended interest rate?

Blended Interest Rate CalculatorFree · no sign-in required

Use it right here — free, no account needed. Create a free account to keep your scenarios and send them to clients from your dashboard.

About this calculator

When debt is spread across several loans, the headline rate on any one of them is misleading. This calculator weights every balance by size to produce your true blended rate — the number to compare against any consolidation or refinance offer.

What it shows you

  • Your blended rate across up to 10 debts, weighted by balance
  • Total balance across all debts
  • Estimated annual and monthly interest cost

What you'll enter

  • Each debt's balance and interest rate
  • An optional label for each debt

When to use it

  • You carry several loans and want one combined rate
  • Knowing your blended rate before you weigh a consolidation offer

Why it matters

Consolidation pitches live or die on the blended rate. Showing the honest, weighted number — not just the lowest rate in the pile — is what separates a trusted advisor from a salesperson.