Can I include more than three debts?

Combine similar APR balances or run multiple passes. The math scales to any number of debts.

Does this include fees or promo rates?

No. Add fees to your analysis and adjust rates after promo periods end.

Fixed vs variable rates?

This assumes fixed rates. For variable rates, use current APRs and revisit as they change.

Should I include 0% promo balances?

Yes—enter them with 0% if you want them included. The weighted rate will drop accordingly.

How do I use the result?

Compare the weighted rate to a consolidation loan or transfer offer to see if you lower your effective APR after fees.

finance calculator

Weighted Average Interest Rate Calculator

Find the weighted average interest rate across multiple debts for refinancing or payoff planning.

Results

Total balance: $8,000
Weighted average rate: 19.50%

How to use this calculator

Enter the balance and interest rate for each debt (use 0 for unused slots).
We sum balances and compute the weighted average interest rate.
Use the weighted rate to compare against consolidation or refinance offers.

Inputs explained

Balance: Outstanding principal on the debt.
Rate (%): Annual percentage rate for that debt.

How it works

Weighted rate = (Σ balance × rate) ÷ total balance.

Total balance sums all balances entered; optional third balance can be left at 0.

Formula

Weighted rate = (B1×R1 + B2×R2 + B3×R3) ÷ (B1 + B2 + B3)

When to use it

Comparing a consolidation loan APR to your blended card/personal loan rates.
Estimating the effective rate before doing a balance transfer.
Prioritizing high-APR balances in a debt payoff strategy.

Tips & cautions

Exclude paid-off accounts; use current balances and APRs for accuracy.
If you have more than three debts, combine similar APR balances or run multiple passes.
Use the weighted rate as a benchmark—also consider fees when evaluating refinance offers.
Assumes fixed APRs and balances; does not model variable rates or amortization over time.
Does not include fees or promo periods; add those separately to your analysis.
Only three inputs—aggregate similar debts if you have more.

Worked examples

$5,000 @18% and $3,000 @22%

Total balance = $8,000
Weighted rate ≈ (5,000×0.18 + 3,000×0.22) / 8,000 ≈ 19.5%

$4,000 @16%, $2,500 @24%, $1,500 @12%

Total balance = $8,000
Weighted rate ≈ (640 + 600 + 180) / 8,000 ≈ 17.75%

Deep dive

This weighted average interest rate calculator blends your debt balances and APRs into one effective rate, making it easy to judge consolidation or refinancing offers.

Enter up to three balances and rates to see your total balance and blended APR for quick debt payoff planning.

FAQs

Can I include more than three debts?: Combine similar APR balances or run multiple passes. The math scales to any number of debts.
Does this include fees or promo rates?: No. Add fees to your analysis and adjust rates after promo periods end.
Fixed vs variable rates?: This assumes fixed rates. For variable rates, use current APRs and revisit as they change.
Should I include 0% promo balances?: Yes—enter them with 0% if you want them included. The weighted rate will drop accordingly.
How do I use the result?: Compare the weighted rate to a consolidation loan or transfer offer to see if you lower your effective APR after fees.

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For estimation only. Rates, fees, and balances change. Validate with current statements before refinancing or consolidating debt.