Accrue pre- or post-judgment interest on a principal amount over a date range. You supply the statutory rate for your jurisdiction — the tool does the day-counting and the math.
This worksheet is a calculation aid, not legal advice. Interest rates, accrual rules, and day-count conventions are set by statute and court order and differ by jurisdiction and judgment type. The user is responsible for supplying the correct rate and method; verify the result against the controlling authority before filing or collecting.