180 Day Calculator
Use this half-year calculator to plan training cycles, contract renewals, or visa compliance windows.
Start date: Wednesday, November 26, 2025
180 days later: Monday, May 25, 2026
Time span: 180 days ≈ 25.7 weeks ≈ 5.9 months
Days relative to today: 180 day(s) remaining
How to Use This Calculator
Pick your anchor date
Select the date from which you want to count 180 days.
Choose forward or backward
Determine whether you’re planning ahead or reviewing the past.
Document the milestone
Add the target date to project plans, legal paperwork, or habit trackers.
Formula
Target Date = Start Date ± 180 days
Weeks ≈ 180 ÷ 7
Months ≈ 180 ÷ 30.4375
Example: Start 2025-11-09 → 180 days later is 2026-05-08 (Friday).
Half-Year Planning Ideas
- Prepare for 180-day visa stay limits when traveling abroad.
- Review business performance mid-way through the fiscal year.
- Design 6-month fitness or personal growth programs.
- Schedule maintenance for HVAC systems or seasonal property checks.
Frequently Asked Questions
Is 180 days exactly 6 months?
Not always—months vary in length. This tool counts exact days, giving calendar-accurate results.
Can I sync this with a calendar?
Yes—copy the target date into Google Calendar, Outlook, or your planning app.
What if I need business-day calculations?
Use the Business Days Calculator to exclude weekends and holidays.
Does it handle past dates?
Yes—use the backwards option to examine the date 180 days ago in history.