Statute of Limitations Calculator
Track filing deadlines for personal injury, malpractice, and other claims.
About this calculator
A statute of limitations sets a hard deadline for filing a lawsuit, and missing it typically bars the claim forever regardless of how strong the underlying case is, which makes tracking it one of the highest-stakes calculations in personal injury law. This calculator starts from your state's limitations period in years, converts it to months, and counts down from the incident date using the months already elapsed. If the injured person was a minor at the time of the incident, the clock is tolled: the full standard filing period is added on top of however many months remained until their 18th birthday at the time of the incident, since most states don't start running the statute against a minor until they reach adulthood — that extension is fixed by their age at the incident and applies whether you're checking it while they're still a minor or years after they've already turned 18.
Deadline Expired flips on the moment remaining time hits zero, and Urgent flags anything inside a six-month window as a signal to act quickly. The Discovery Rule Months field and its Effective Deadline Months output model the separate legal principle that some claims — most notably medical malpractice — don't start their clock until the injury was discovered, but that figure is shown as a distinct, informational estimate rather than being blended into the primary countdown, so always confirm your actual deadline with an attorney whenever the discovery rule might apply to your case.
Legal Disclaimer
This calculator provides general estimates only and does not constitute legal advice. Laws, regulations, and court procedures vary significantly by jurisdiction. Consult a licensed attorney in your area for advice specific to your situation.
Inputs
Results
Months Remaining
16 months
Days Remaining
487 days
How to Use This Calculator
- Select Injury Type: personal injury, medical malpractice, product liability, or wrongful death.
- Enter Injury Date — the clock typically starts on the date of injury or discovery.
- Set State to apply the correct limitations period.
- Review Filing Deadline — the date by which a lawsuit must be filed.
- Check remaining days — never delay consulting an attorney near a deadline.
- Discovery rule and tolling exceptions may extend the deadline; confirm with an attorney for your specific facts.
How the result changes with State Statute of Limitations (Years)
| State Statute of Limitations (Years) | Months Remaining | Days Remaining |
|---|---|---|
| 1 | 4 months | 122 days |
| 1.5 | 10 months | 304 days |
| 3 | 28 months | 852 days |
| 5 | 52 months | 1,583 days |
What each input means
- Claim Type (1=PI, 2=MedMal, 3=Product, 4=WrongfulDeath, 5=Property)
- Type of legal claim.
- State Statute of Limitations (Years)
- Statute of limitations in your state (varies by state and claim type).
- Months Since Incident
- Months elapsed since the incident occurred.
- Discovery Rule Months (0 if N/A)
- Months from incident to when injury was discovered (0 if same time).
- Age if Minor (0 if Adult)
- Age at time of incident if victim was a minor (0 if adult).
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersClaim Type (1=PI, 2=MedMal, 3=Product, 4=WrongfulDeath, 5=Property) = 1, State Statute of Limitations (Years) = 2, Months Since Incident = 8, Discovery Rule Months (0 if N/A) = 0 = 5 input(s) provided
- Calculate Months RemainingMonths Remaining16 = 16
- Calculate Days RemainingDays Remaining487 = 487
- Calculate Deadline ExpiredDeadline Expired0 = 0
- Calculate UrgentUrgent0 = 0
Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
What actually happens if I miss the statute of limitations deadline?
In the vast majority of cases, the court will dismiss the lawsuit entirely regardless of how strong the evidence is or how clearly the other party was at fault, because the right to sue itself expires, not just the convenience of filing. A small number of narrow exceptions like fraudulent concealment by the defendant can sometimes revive an expired claim, but they are the rare exception rather than something to count on.
Why does the deadline for a minor depend on their age at the time of the incident rather than today's date?
Minor tolling exists to protect children who can't file a lawsuit on their own behalf, so the law fixes the extension at whatever gap existed between their age when injured and turning 18, then adds the standard filing period on top of that fixed gap. Because that extension is locked in at the moment of the incident, it still applies in full even if you're checking the deadline years after the child has already become an adult.
Does the discovery rule extend my deadline automatically if I select it here?
No — Effective Deadline Months is calculated and shown as a separate, informational estimate of what the discovery rule could mean for your case, but it does not get folded into the Months Remaining or Deadline Expired figures this calculator highlights as the headline result. Anyone whose injury was discovered well after the incident, which is common in medical malpractice, should treat the standard countdown shown here as a floor, not the final word, and verify the real deadline with an attorney.
Does the type of claim I select change how the deadline is calculated?
Not within this calculator's math — Claim Type is a label for context, but the actual countdown is driven entirely by whatever State Statute of Limitations figure you enter, since different states genuinely do set different limitations periods for personal injury versus medical malpractice versus product liability claims. You need to enter the correct period for your specific state and claim type rather than relying on the calculator to look it up for you.
Why does this calculator ask for months elapsed instead of an actual incident date?
Working in whole months avoids the added complexity of calendar and leap-year arithmetic while still giving a close, practical estimate of remaining time, and remaining months are converted to an approximate day count using an average 30.44-day month for a rough sense of urgency. For a deadline within weeks of expiring, confirming the exact calendar date with an attorney is essential rather than relying on this averaged conversion.
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