Free contract calculators and tools
Calculate notice periods, renewal dates, and cancellation deadlines. Never miss another contract deadline with our free contract management tools.
Why use Contracko calculators?
100% free
No sign-up, no credit card, no hidden fees. Use all our tools completely free.
Instant results
Get accurate calculations immediately. No waiting, no processing delays.
Private and secure
All calculations happen in your browser. We don't store your contract data.
Accurate calculations
Built by contract management experts. Handles edge cases like leap years and month-end dates.
Core contract calculators
Essential tools for calculating contract dates and deadlines.
Notice period calculator
Calculate your contract cancellation deadline with our free notice period calculator. Know exactly when to cancel to avoid auto-renewal.
Contract end date calculator
Calculate when your contract ends based on start date and duration. Free tool for contract management.
Contract expiration calculator
Calculate when your contract expires with our free contract expiration calculator. Know your exact expiration date to plan renewals or cancellations.
Contract renewal calculator
Calculate your new contract end date after renewal. Know when your renewed contract term will end.
Cancellation deadline calculator
Calculate your exact cancellation deadline. Never miss another contract cancellation date.
Contract start date calculator
Calculate contract start date (effective date) from end date and duration. Free tool for contract audits and compliance verification.
Common questions
Quick answers to your most frequently asked contract date questions.
When should I cancel my contract?
Find out exactly when you need to cancel your contract to avoid automatic renewal fees and penalties.
When does my contract end?
Calculate your contract end date based on start date and duration. Know exactly when your contract expires.
When does my contract renew?
Find out when your auto-renewing contract will renew next. Calculate renewal dates for subscription contracts.
How much notice do I need to give to cancel?
Calculate how much advance notice you need to give to cancel your contract. Understand notice period requirements.
What if I miss the cancellation deadline?
Calculate the cost and impact of missing your contract cancellation deadline. Understand auto-renewal penalties.
When do I need to give notice?
Calculate when you need to give cancellation notice to avoid auto-renewal. Find your notice deadline to cancel on time.
When do I need to terminate my contract?
Calculate your contract termination deadline. Know exactly when you need to terminate to avoid auto-renewal fees and penalties.
Specialized tools
Industry-specific calculators for unique contract scenarios.
SaaS contract calculator
Calculate notice periods, renewal dates, and cancellation deadlines for your SaaS subscriptions. Free SaaS contract tool.
Vendor contract calculator
Calculate key dates for vendor agreements. Track renewal dates, notice periods, and cancellation deadlines.
Lease agreement calculator
Calculate lease end dates, renewal dates, and notice periods for commercial and office leases.
Subscription contract calculator
Calculate renewal dates and cancellation deadlines for all your subscription contracts. Track recurring agreements.
Service contract calculator
Calculate key dates for service agreements. Track maintenance contracts, support agreements, and professional services.
Trademark expiration calculator
Calculate when your trademark registration expires. Track renewal deadlines for trademark registrations to maintain protection.
Insurance policy expiration calculator
Calculate when your insurance policy expires. Track renewal deadlines to avoid coverage gaps.
Domain name expiration calculator
Calculate when your domain name expires. Track domain renewal deadlines to prevent loss of your website address.
Employment contract calculator
Calculate notice periods for employment contracts. Know when to resign to meet your contractual obligations.
Warranty expiration calculator
Calculate when product warranties expire. Track warranty periods to make claims before coverage ends.
License agreement calculator
Calculate license agreement expiration dates. Track software licenses and professional licenses to maintain compliance.
Patent expiration calculator
Calculate when your patent protection expires. Track patent terms to understand when intellectual property enters public domain.
Franchise agreement calculator
Calculate franchise agreement termination deadlines. Know when to give notice for franchise renewals or terminations.
NDA expiration calculator
Calculate when non-disclosure agreements expire. Track confidentiality obligations to know when you can share information.
Equipment rental calculator
Calculate equipment rental return dates. Track rental periods to avoid late fees and plan for returns or extensions.
Payment terms calculator
Calculate invoice due dates based on payment terms. Know exactly when Net 30, Net 60, or Net 90 invoices are due.
Master service agreement calculator
Calculate MSA termination notice deadlines. Track master service agreement end dates and notice periods for vendor relationships.