Count the exact number of days between any two dates, including or excluding weekends. Also find what date falls a specific number of days in the past or future from any starting date.
| Scenario | Calculation |
|---|---|
| 30/60/90 day deadlines | Days from contract date |
| Subscription trials | Days from signup date |
| Countdown to event | Days until future date |
| How long ago something happened | Days since past date |
| Pregnancy week tracking | Days since last period |
| Lease expiration | Days from start of lease |
This free days calculator helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.
Small errors in math calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.
Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.
How accurate are the results? This calculator uses the standard formulas for days calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.
Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.