Year (yr) Time Conversion Calculator

Year Conversion Calculator

Enter a value in years below to convert to another unit of time.

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What Is a Year?

A year is a unit used to measure time.

Years can be abbreviated as yr (plural yrs), and are also sometimes abbreviated as y. For example, 1 year can be written as 1 yr or 1 y, and 2 years can be written as 2 yrs.

How Much Is a Year?

One year is the time it takes for the Earth to complete its orbit around the Sun. There are 365 days in a year, with the exception of the leap year when there are 366.

We have leap years because the Earth actually takes 365.2425 days to revolve around the sun, but we round to 365 for convenience. However, since we miss a quarter of a day per revolution around the sun, this means that we add an extra day to the year once every 4 years, hence the leap year.

This can make conversions to days more difficult, since it is important to know if the particular year in question is a leap year. For this reason, the calculator above uses 365.2425 days per year for its conversions.

How to Convert Years

To convert years to another unit of time, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.^[1]

You can find the conversion factors for years in the conversion table below.

Then, multiply the time measurement by the conversion factor to find the equivalent value in the desired unit of measurement.

years × conversion factor = result

You can also use a calculator, such as one of the converters below, for the conversion.

Year Conversion Table

Years and the equivalent time durations
years	centuries	decades	months	weeks	days	hours	minutes	seconds	milliseconds	microseconds	nanoseconds
1 yr	0.01 c	0.1	12 mo	52.1775 wk	365.2425 d	8,766 hr	525,949 min	31,556,952 s	31,556,952,000 ms	31,556,952,000,000 µs	31,557,000,000,000,000 ns
2 yr	0.02 c	0.2	24 mo	104.355 wk	730.485 d	17,532 hr	1,051,898 min	63,113,904 s	63,113,904,000 ms	63,113,904,000,000 µs	63,114,000,000,000,000 ns
3 yr	0.03 c	0.3	36 mo	156.5325 wk	1,096 d	26,297 hr	1,577,848 min	94,670,856 s	94,670,856,000 ms	94,670,856,000,000 µs	94,671,000,000,000,000 ns
4 yr	0.04 c	0.4	48 mo	208.71 wk	1,461 d	35,063 hr	2,103,797 min	126,227,808 s	126,227,808,000 ms	126,230,000,000,000 µs	126,230,000,000,000,000 ns
5 yr	0.05 c	0.5	60 mo	260.8875 wk	1,826 d	43,829 hr	2,629,746 min	157,784,760 s	157,784,760,000 ms	157,780,000,000,000 µs	157,780,000,000,000,000 ns
6 yr	0.06 c	0.6	72 mo	313.065 wk	2,191 d	52,595 hr	3,155,695 min	189,341,712 s	189,341,712,000 ms	189,340,000,000,000 µs	189,340,000,000,000,000 ns
7 yr	0.07 c	0.7	84 mo	365.2425 wk	2,557 d	61,361 hr	3,681,644 min	220,898,664 s	220,898,664,000 ms	220,900,000,000,000 µs	220,900,000,000,000,000 ns
8 yr	0.08 c	0.8	96 mo	417.42 wk	2,922 d	70,127 hr	4,207,594 min	252,455,616 s	252,455,616,000 ms	252,460,000,000,000 µs	252,460,000,000,000,000 ns
9 yr	0.09 c	0.9	108 mo	469.5975 wk	3,287 d	78,892 hr	4,733,543 min	284,012,568 s	284,012,568,000 ms	284,010,000,000,000 µs	284,010,000,000,000,000 ns
10 yr	0.1 c	1	120 mo	521.775 wk	3,652 d	87,658 hr	5,259,492 min	315,569,520 s	315,569,520,000 ms	315,570,000,000,000 µs	315,570,000,000,000,000 ns
11 yr	0.11 c	1.1	132 mo	573.9525 wk	4,018 d	96,424 hr	5,785,441 min	347,126,472 s	347,126,472,000 ms	347,130,000,000,000 µs	347,130,000,000,000,000 ns
12 yr	0.12 c	1.2	144 mo	626.13 wk	4,383 d	105,190 hr	6,311,390 min	378,683,424 s	378,683,424,000 ms	378,680,000,000,000 µs	378,680,000,000,000,000 ns
13 yr	0.13 c	1.3	156 mo	678.3075 wk	4,748 d	113,956 hr	6,837,340 min	410,240,376 s	410,240,376,000 ms	410,240,000,000,000 µs	410,240,000,000,000,000 ns
14 yr	0.14 c	1.4	168 mo	730.485 wk	5,113 d	122,721 hr	7,363,289 min	441,797,328 s	441,797,328,000 ms	441,800,000,000,000 µs	441,800,000,000,000,000 ns
15 yr	0.15 c	1.5	180 mo	782.6625 wk	5,479 d	131,487 hr	7,889,238 min	473,354,280 s	473,354,280,000 ms	473,350,000,000,000 µs	473,350,000,000,000,000 ns
16 yr	0.16 c	1.6	192 mo	834.84 wk	5,844 d	140,253 hr	8,415,187 min	504,911,232 s	504,911,232,000 ms	504,910,000,000,000 µs	504,910,000,000,000,000 ns
17 yr	0.17 c	1.7	204 mo	887.0175 wk	6,209 d	149,019 hr	8,941,136 min	536,468,184 s	536,468,184,000 ms	536,470,000,000,000 µs	536,470,000,000,000,000 ns
18 yr	0.18 c	1.8	216 mo	939.195 wk	6,574 d	157,785 hr	9,467,086 min	568,025,136 s	568,025,136,000 ms	568,030,000,000,000 µs	568,030,000,000,000,000 ns
19 yr	0.19 c	1.9	228 mo	991.3725 wk	6,940 d	166,551 hr	9,993,035 min	599,582,088 s	599,582,088,000 ms	599,580,000,000,000 µs	599,580,000,000,000,000 ns
20 yr	0.2 c	2	240 mo	1,044 wk	7,305 d	175,316 hr	10,518,984 min	631,139,040 s	631,139,040,000 ms	631,140,000,000,000 µs	631,140,000,000,000,000 ns