Day of Year Calculator

Find which day of the year a date is, days remaining, and year progress instantly in your browser. Free online day-of-year calculator — no uploads.

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Results

Day of year
DetailValue
Ordinal day
Days in year
Days remaining
Year progress (%)

What is this calculator for?

Determine what day of the year a date falls on, how many days remain, and year progress.

How to Use This Calculator

Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.

  1. Date — enter a date.
  2. Review your results — the key output is highlighted, with supporting figures below.

What You'll Need

Date
a date · required

About This Calculator

This calculator returns the ordinal day of the year (Jan 1 = 1) for any date, along with how many days are left and your position in the year as a percentage.

Leap years are accounted for automatically (366 days). Progress is reported to one decimal place, e.g. 65.4% of the year on September 1.

Calculation runs entirely in your browser.

Worked Examples

Example

Day 244 of 365

Frequently Asked Questions

What is an ordinal date?
It numbers each day of the year consecutively from 1 to 365 (or 366), so "day 244" is a compact, unambiguous way to refer to September 1.
Does Feb 29 affect the count?
Yes — in a leap year February 29 exists, so every date after it is one ordinal number higher and the year has 366 days.