la legal interest calculator

Fast manual estimate

Enter your own amount, rate, and dates to estimate simple legal interest. All fields are editable manual inputs.

Amount owed Enter the judgment, debt, or balance amount.

Annual legal interest rate (%) Type any rate you want. Suggested values are only optional.

Interest start date

Interest end date

Optional costs or fees Add court costs or other fees only if you want them included in the total.

Result report

Legal interest estimate

Estimated total due $0.00

Principal amount$0.00

Interest earned$0.00

Optional costs or fees$0.00

Daily interest amount$0.00

Number of days0

Annual rate used0%

Date rangeNot selected

How this estimate is calculated

The calculator uses simple interest: amount owed × annual rate × days ÷ 365.

Disclaimer: This calculator provides a simple estimate only. It is not legal advice. Verify the correct legal rate, date rules, compounding rules, and allowable fees for your specific matter.