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 auto-renewal. Know exactly when your renewed contract term will end and plan ahead to avoid surprises.
Cancellation deadline calculator
Calculate your exact contract cancellation deadline based on your notice period. Never miss another cancellation date and avoid unwanted auto-renewals.
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.
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 renewal calculator
Calculate your new contract end date after auto-renewal. Know exactly when your renewed contract term will end and plan ahead to avoid surprises.
Notice period calculator
Calculate your contract cancellation deadline with our free notice period calculator. Know exactly when to cancel to avoid auto-renewal.
Contract renewal calculator
Calculate your new contract end date after auto-renewal. Know exactly when your renewed contract term will end and plan ahead to avoid surprises.
Notice period calculator
Calculate your contract cancellation deadline with our free notice period calculator. Know exactly when to cancel to avoid auto-renewal.
Notice period calculator
Calculate your contract cancellation deadline with our free notice period calculator. Know exactly when to cancel to avoid auto-renewal.
Specialized tools
Industry-specific calculators for unique contract scenarios.
SaaS contract calculator
Calculate notice periods, renewal dates, and cancellation deadlines for your SaaS subscriptions.
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 subscription contracts.
Service contract calculator
Calculate key dates for service agreements, maintenance, and support contracts.
Trademark expiration calculator
Calculate when your trademark registration expires and track renewal deadlines.
Insurance policy expiration calculator
Calculate when your insurance policy expires and track renewal deadlines.
Domain name expiration calculator
Calculate when your domain name expires and avoid losing your website address.
Employment contract calculator
Calculate notice periods for employment contracts and meet obligations.
Warranty expiration calculator
Calculate when product warranties expire and plan claims.
License agreement calculator
Calculate license agreement expiration dates and renewals.
Patent expiration calculator
Calculate when your patent protection expires and key deadlines.
Franchise agreement calculator
Calculate franchise agreement termination or renewal notice deadlines.
NDA expiration calculator
Calculate when non-disclosure agreements expire.
Equipment rental calculator
Calculate equipment rental return dates and rental periods.
Payment terms calculator
Calculate invoice due dates based on payment terms.
Master service agreement calculator
Calculate MSA termination notice deadlines and renewal timelines.