Days Calculator

About This Tool

Look, I get it—sometimes you just need to know how many days are between two dates. Maybe you're counting down to a trip, tracking a project deadline, or just curious about how long it’s been since that weird thing happened last summer. Whatever the reason, a days calculator does exactly what it says on the tin: it figures out the number of days between any two dates you give it. No fluff, no login, no ads popping up every three seconds. Just pick a start date, pick an end date, and boom—you’ve got your answer. It’s simple, fast, and actually useful when you’re not in the mood for mental math or digging through old calendars.

Key Features

• Works with any dates—past, present, or future. Go ahead, calculate how many days until your 100th birthday.
• Includes both start and end dates in the count. So if you start on Monday and end on Wednesday, that’s 3 days, not 2.
• Handles leap years automatically. You don’t have to remember whether 2026 had an extra day—it does the math for you.
• No sign-up required. Just open it and use it. Like a normal tool should be.
• Works on your phone, tablet, or laptop. Because sometimes you’re not at your desk.

FAQ

Does it count weekends and holidays?
Yes—unless you’re using a version that lets you exclude them (some do, some don’t). The basic calculator includes every day, Monday through Sunday. If you need business days only, you’ll want a more advanced tool, but for most everyday uses, counting all days is what you want.

What if I enter the dates backwards?
Most decent calculators will either swap them automatically or give you a heads-up. But don’t stress—if you accidentally put the end date before the start date, you’ll usually just get a negative number or a zero. Either way, you’ll know something’s off. Just double-check and try again.