Legal Interest Calculator

Fast court-style estimate

Legal Interest Calculator

Enter your amount, rate, and date range to estimate legal interest instantly.

The original amount owed before interest.
Use the legal, contract, or court-approved annual rate.
Simple interest is commonly used unless a rule or agreement says otherwise.
Add court costs or allowed fees only if they apply.

Result report

Estimated Legal Interest

Total amount due $0.00
Principal amount$0.00
Interest earned$0.00
Optional costs or fees$0.00
Daily interest estimate$0.00
Days counted0
Interest methodSimple interest

Input summary

Annual interest rate0%
Date range-

Disclaimer: This calculator provides an estimate only. Legal interest rules vary by jurisdiction, contract, judgment, and court order. Confirm the correct rate and method before relying on the result.