Small Claims Court involves more numbers than people expect — a filing deadline, a filing fee, interest on the amount owed. Guessing at any of these can cost you: miss a limitation period and you may lose the right to sue at all; underestimate interest and you may ask the court for less than you're entitled to. The calculators below give you a quick, informational starting point for each.
The calculators
-
Available now
Filing deadline calculator
An informational estimate of when a limitation period may expire, based on when your dispute arose.
-
Available now
Court fee calculator
Estimate the filing and step-by-step fees involved in a typical case, from filing through trial and enforcement.
-
Available now
Prejudgment interest calculator
Estimate interest that may accrue on a claim for the period before a judgment is issued.
-
Available now
Postjudgment interest calculator
Estimate interest that may accrue on a judgment that remains unpaid after the court has ruled.
-
Available now
Counterclaim calculator
See the net position if a counterclaim and the claim against you both succeed.
-
Available now
Demand letter amount calculator
Work out a precise, defensible total to include in a demand letter.
-
Available now
Contractor dispute calculator
Estimate the value of a claim over incomplete, defective, or overbilled work.
-
Available now
Security deposit claim calculator
Estimate what you may be owed in a deposit dispute.
-
Available now
Moving damage claim calculator
Estimate what you may be owed for belongings damaged, lost, or delayed during a move.
-
Available now
Small claims court limit calculator
Check whether your claim fits within the $50,000 monetary limit.
-
Available now
Settlement vs. court calculator
Compare a settlement offer against the likely cost of proceeding to trial.
-
Available now
Neighbour dispute calculator
Estimate the value of a property line, fence, or damage-related dispute.
-
Available now
Bounced cheque calculator
Estimate what you're owed when a cheque bounces, including NSF fees.
-
Available now
Unpaid invoice calculator
Estimate what you're owed on an unpaid invoice, including late fees.
-
Available now
Wedding vendor dispute calculator
Estimate what you're owed from a vendor who didn't deliver.
How to use these calculators
Each calculator focuses on one specific question and takes a couple of minutes to work through. A sensible order for most people starting a claim is:
- Check your filing deadline first. If a limitation period is close to expiring, that changes how urgently you need to act — start with the filing deadline calculator.
- Estimate your fees. Use the court fee calculator to get a realistic sense of what pursuing the claim might cost you.
- Add prejudgment interest to your claim amount. If you're owed money, the prejudgment interest calculator helps you estimate how much interest to ask for.
- Track postjudgment interest if you've already won. Once you have a judgment that hasn't been paid, the postjudgment interest calculator estimates how the amount owed keeps growing.
Are these calculators legal advice?
No. Every calculator on this page is intended to provide a general, informational estimate only — not legal advice and not a guarantee of any outcome. Court rules, fees, and interest rates can change, and every case has its own facts. Use these tools as a planning aid, and confirm anything important against your own documents or with a legal professional before you rely on it.
Frequently asked questions
Do I need to use all of these calculators?
No — use whichever ones are relevant to where you are in your case. Someone just learning about a dispute might only need the filing deadline calculator, while someone who has already won a judgment might only need the postjudgment interest calculator.
Are these calculators free to use?
Yes. They're provided as a free informational resource, with no account or payment required.
What's the difference between a calculator and a legal wizard?
The calculators on this page estimate a single number — a date, a fee, or an interest amount. The legal wizards are guided, multi-step tools that walk you through a document or a decision, such as drafting a demand letter or comparing a settlement offer to a possible judgment.
Do the results get saved anywhere?
Treat each calculator's result as a one-time estimate for your own reference. Write down or screenshot anything you want to keep before you close the page.