Years to Months Converter
Convert years (average Gregorian) (yr) to months (average) (mo), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a length of time, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 yr = 12 mo
- 1 × 12 = 12 mo
How to convert years to months
1 yr = 12 mo, so multiply by 12 to go from years (average Gregorian) to months (average). Going the other way, 1 mo = 0.0833333333333 yr.
mo = yr × 12 yr = mo × 0.0833333333333
Worked example:
1 yr = 12 mo 5 × 12 = 60 mo
Years to months table
| Years | Months |
|---|---|
| 1 yr | 12 mo |
| 2 yr | 24 mo |
| 3 yr | 36 mo |
| 4 yr | 48 mo |
| 5 yr | 60 mo |
| 6 yr | 72 mo |
| 7 yr | 84 mo |
| 8 yr | 96 mo |
| 9 yr | 108 mo |
| 10 yr | 120 mo |
| 15 yr | 180 mo |
| 20 yr | 240 mo |
| 25 yr | 300 mo |
| 30 yr | 360 mo |
| 40 yr | 480 mo |
| 50 yr | 600 mo |
| 75 yr | 900 mo |
| 100 yr | 1,200 mo |
| 250 yr | 3,000 mo |
| 500 yr | 6,000 mo |
| 1000 yr | 12,000 mo |
About the units
- Years (yr)
- Years (average Gregorian), a specialised unit. 365.2425 days, the average Gregorian calendar year. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
- Months (mo)
- Months (average), a specialised unit. An average Gregorian month: 1/12 of 365.2425 days = 30.436875 days. Calendar months are 28 to 31 days. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).