Damages Prejudgment Interest
Calculator
Results
- Interest amount
- 5,000
- Daily interest
- 6.849315
- Judgment with interest
- 55,000
Legal and admin results
| Interest amount | 5,000 |
| Daily interest | 6.849315 |
| Judgment with interest | 55,000 |
formula-map diagram
- Interest amount
- 5,000
- Daily interest
- 6.849315
- Judgment with interest
- 55,000
Legal and admin relationship
Formula
Interest = principal × annual rate × days ÷ day-count basis= 5000
Note
This is NOT legal advice and NOT a statement of any law. It is generic arithmetic: it applies the displayed formula to the figures you entered, and every rate, fraction, factor, cap and threshold shown is a value YOU supply, not a statutory or court-approved figure. No jurisdiction's rule is built in. Real entitlements, fees, interest, support amounts and deadlines depend entirely on the jurisdiction, the wording of the contract, the day-count and rounding conventions the court applies, and the facts of the case. Use these figures only as a rough arithmetic check and consult a qualified lawyer in the relevant jurisdiction before relying on any number.
More in Legal and admin
See all →Frequently asked questions
What is prejudgment interest and why is it added to damages?+
Prejudgment interest compensates a claimant for the time value of money lost between the date of injury or breach and the date of judgment. It is added on top of the base damages award, calculated at a statutory or contractual rate.
How is the interest rate for prejudgment interest determined?+
Many jurisdictions set a statutory rate (sometimes tied to a benchmark like the prime rate), while some contracts specify their own rate. This calculator lets you enter the applicable rate — check your jurisdiction's statute for the correct figure since it is not always the same as post-judgment interest.
From what date does prejudgment interest start accruing?+
This varies by jurisdiction and claim type: some start the clock at the date of injury or breach, others at the date the claim was filed. Using the wrong start date is one of the most common errors in these calculations, so confirm the rule that applies to your case.
Is prejudgment interest calculated as simple or compound interest?+
Most jurisdictions apply simple interest for prejudgment periods, though some statutes specify compounding annually. The calculator defaults to simple interest unless you choose otherwise — verify which method your jurisdiction requires.
Does prejudgment interest apply to the full damages amount?+
Usually it applies only to compensatory damages already fixed in amount (like medical bills or lost wages to date), not to damages that will occur in the future or punitive damages, which are generally excluded. Rules differ by jurisdiction, so this is general guidance, not legal advice.