Getting out of debt starts with a plan, and the right calculator can show you exactly when you'll be debt-free and how much you'll pay along the way. We've tested dozens of debt payoff calculators to find the ones that actually help you succeed.
Here are the 5 best debt payoff calculators available today, ranked by features, accuracy, and ease of use.
1. Calculator Kit Debt Payoff Calculator - Best Overall
Rating: ⭐⭐⭐⭐⭐ (5/5)
Our debt payoff calculator takes the top spot because it's the only tool that gives you everything you need in one place without the complexity of bloated financial software.
- Both avalanche AND snowball methods
- Real-time comparison
- Unlimited debts
- No signup required
- Mobile-friendly design
- Payment schedule breakdown
- 100% free
2. Unbury.me - Best for Simplicity
Website: https://unbury.me
Rating: ⭐⭐⭐⭐ (4/5)
Unbury.me has been around for years and earned a loyal following for good reason. It's clean, simple, and gets straight to the point.
3. PowerPay by Utah State University - Best for Education
Website: https://powerpay.org
Rating: ⭐⭐⭐⭐ (4/5)
4. Vertex42 Debt Reduction Calculator - Best Excel Option
Website: https://www.vertex42.com/Calculators/debt-reduction-calculator.html
Rating: ⭐⭐⭐½ (3.5/5)
5. Credit Karma Debt Repayment Calculator - Best If You're Already a Member
Website: https://www.creditkarma.com/calculators/debt-repayment
Rating: ⭐⭐⭐ (3/5)
Comparison Chart
| Calculator | Methods | Debt Limit | Signup Required | Mobile-Friendly | Detail Level | Price |
|---|---|---|---|---|---|---|
| Calculator Kit | Both | Unlimited | No | Yes | Very High | Free |
| Unbury.me | Both | 10 | No | Yes | Medium | Free |
| PowerPay | Avalanche Only | Unlimited | Yes | Moderate | High | Free |
| Vertex42 | Avalanche Default | Unlimited | No | No | Very High | Free |
| Credit Karma | Both | Varies | Yes | Yes | Low | Free |
Ready to Start Your Debt-Free Journey?
Stop wondering when you'll be out of debt and start seeing the exact timeline.
Use Our Free Debt Payoff Calculator →
Disclaimer: These rankings are based on our testing and evaluation as of February 2026.