Years to Months
A year is approximately 365.24 days, the time Earth takes to orbit the Sun once. A month here is treated as 1/12 of a year (about 30.44 days average), since calendar months vary from 28 to 31 days. 1 yr equals 12 mo, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to time, measured here against time's base unit (s) — every other time unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
mo = yr × 12
yr = mo × ≈0.0833333
Worked example: 5 yr × 12 = 60 mo.
Conversion table
| Year (yr) | Month (mo) |
|---|---|
| 1 yr | 12 mo |
| 2 yr | 24 mo |
| 3 yr | 36 mo |
| 5 yr | 60 mo |
| 10 yr | 120 mo |
| 20 yr | 240 mo |
| 25 yr | 300 mo |
| 50 yr | 600 mo |
| 100 yr | 1,200 mo |
| 250 yr | 3,000 mo |
| 500 yr | 6,000 mo |
| 1,000 yr | 12,000 mo |
Frequently asked
- How many Months in a year?
- 1 yr equals 12 mo.
- How do I convert Years to Months?
- Multiply the value in yr by 12 to get mo. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Year and Month are both defined by a fixed conversion factor to time's base unit (s), so the result shown is exact to the precision displayed, not an approximation.