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.

Common questions

Quick answers to your most frequently asked contract date questions.

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.