Free Date Calculator Tools

Calculate days, weeks, months, and years between dates. Plan trips, contracts, events, and deadlines with our free online date calculators.

Quick Reference

Today

Monday, July 20, 2026

Day 201 of 365

55%

163 days until year end

163

Available Calculators

Date Difference Calculator
Popular

Find the exact number of days, weeks, or months between two dates. Supports US and European formats plus business-day mode.

Instant results in your browser
US & European date formats
Business days mode

Planning a trip?

Use the date difference calculator to count down to your departure, check cancellation windows, and plan how many days you have between bookings.

Common Uses for Date Calculator

Travel Planning

Calculate trip duration and booking deadlines

Project Planning

Calculate project timelines and deadlines

Contract Management

Determine contract duration and renewal dates

Event Planning

Plan events and calculate preparation time

Why Choose Our Date Calculator?

Free & Easy to Use

No registration required. Simply enter your dates and get instant results.

Accurate Calculations

Precise calculations including leap years and different month lengths.