Convert days to years - Time Conversions

Online calculator to convert days to years (d to yr) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Time units.

Note: This calculator assumes that each year has 365 days and does not take into account leap years.

Conversion Calculator

Enter your value in the conversion calculator below.

Convert days to years

TIP: If the result of your conversion is 0, try increasing the "Decimals".

How to convert days to years: Enter a value in the days field and click on the "Calculate years" button. Your answer will appear in the years field.

Conversion Definitions

The following is a list of definitions relating to conversions between days and years.

What is a day (d)?

A day is a unit of time. The symbol for day is d. There are 365 days in a year. Every 4th year is considered a leap year and adds 1 extra day on February 29th to the Gregorian calendar. In these leap years, there are 366 days in the year instead of 365 days.

What is a year (yr)?

A year is a unit of time. The symbol for year is yr. There are 0.00273973 years in a day.

Conversion Formula

Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from days to years is:

years = days ÷ 365

Conversion Example

Next, let's look at an example showing the work and calculations that are involved in converting from days to years (d to yr).

Day to Year Conversion Example

Task: Convert 215 days to years (show work)

Formula:
days ÷ 365 = years

Calculations:
215 days ÷ 365 = 0.5890411 years

Result:
215 days is equal to 0.5890411 years

Conversion Table

For quick reference purposes, below is a conversion table that you can use to convert from days to years.

Days to Years Conversion Chart

days (d)	years (yr)
1 days	0.00273973 years
2 days	0.00547945 years
3 days	0.00821918 years
4 days	0.0109589 years
5 days	0.01369863 years
6 days	0.01643836 years
7 days	0.01917808 years
8 days	0.02191781 years
9 days	0.02465753 years
10 days	0.02739726 years
20 days	0.05479452 years
30 days	0.08219178 years
40 days	0.10958904 years
50 days	0.1369863 years
75 days	0.20547945 years
100 days	0.2739726 years
250 days	0.68493151 years
500 days	1.36986301 years
750 days	2.05479452 years
1,000 days	2.73972603 years
2,500 days	6.84931507 years
5,000 days	13.69863014 years
7,500 days	20.54794521 years
10,000 days	27.39726027 years
25,000 days	68.49315068 years
50,000 days	136.98630137 years
75,000 days	205.47945205 years
100,000 days	273.97260274 years
250,000 days	684.93150685 years

Related Units

This table provides a summary of the Time units within their respective measurement systems.

Unit	Symbol	Description
nanoseconds	ns	1 second = 1,000,000,000 nanoseconds
microseconds	μs	1 second = 1,000,000 microseconds
milliseconds	ms	1 second = 1,000 milliseconds
seconds	s or sec	base unit of Time
kiloseconds	ks	1,000 seconds = 1 kiloseconds
minutes	min	1 minute = 60 seconds
hours	hr	1 hours = 60 minutes
days	d	1 day = 24 hours
weeks	wk	1 week = 7 days
fortnights	4tnite	1 fortnight = 2 weeks or 14 days
months	mo	1 month = 30.4167 days
years	yr or y	1 year = 365 days
decades	decade	1 decade = 10 years

Share on: