Post Judgment Interest Calculator: Determine Legal Interest Owed

Calculate Your Post Judgment Interest

Accurately calculate post judgment interest for legal awards with our free online tool. Whether for federal or state court judgments, understand the interest accrued from the judgment date until payment. Simplify complex legal finance calculations effortlessly.

Formula:

Total Interest = (Judgment Amount × Annual Interest Rate (as decimal) × Number of Days) / 365

Where:

  • Judgment Amount: The principal sum awarded by the court.
  • Annual Interest Rate (as decimal): The legally mandated annual interest percentage, converted to a decimal (e.g., 0.05 for 5%). The calculator input expects 5 for 5% and converts it.
  • Number of Days: The total number of calendar days from the judgment date (exclusive) to the payment date (inclusive).

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