20 Months to Years – Easy Conversion Explained

20 months equals approximately 1.6667 years.

To convert months into years, you divide the number of months by 12, since there are 12 months in a year. So, 20 months divided by 12 gives the result in years.

Conversion Tool


Result in years:

Conversion Formula

The formula to convert months to years is simple: Years = Months ÷ 12. Since one year contains exactly 12 months, dividing the total months by 12 gives the equivalent time in years.

This works, because the unit “month” is a fraction of a year. For example, if you have 20 months, you take 20 and divide it by 12:

  • Step 1: Identify months value = 20
  • Step 2: Divide by 12 (months per year): 20 ÷ 12 = 1.6667
  • Step 3: Result = 1.6667 years

This means 20 months is about one year and eight months (since 0.6667 of a year is 8 months).

Conversion Example

  • 36 months to years:
    • Divide 36 by 12
    • 36 ÷ 12 = 3
    • Result: 3 years
  • 7 months to years:
    • Divide 7 by 12
    • 7 ÷ 12 = 0.5833
    • Result: approximately 0.5833 years
  • 50 months to years:
    • Divide 50 by 12
    • 50 ÷ 12 = 4.1667
    • Result: about 4.1667 years
  • 3 months to years:
    • Divide 3 by 12
    • 3 ÷ 12 = 0.25
    • Result: 0.25 years (or 3 months)
  • 15 months to years:
    • Divide 15 by 12
    • 15 ÷ 12 = 1.25
    • Result: 1.25 years

Conversion Chart

Months Years
-5.0 -0.4167
0.0 0.0000
5.0 0.4167
10.0 0.8333
15.0 1.2500
20.0 1.6667
25.0 2.0833
30.0 2.5000
35.0 2.9167
40.0 3.3333
45.0 3.7500

Use this chart to quickly find years from months by dividing the months value by 12. Negative values indicate months before a reference point, like past dates. Positive values show future or elapsed time in years.

Related Conversion Questions

  • How many years are 20 months when converted precisely?
  • What is 20 months in decimal years form?
  • Can 20 months be expressed as years and months?
  • How do I convert 20 months into years using a calculator?
  • Is 20 months more or less than 2 years?
  • What fraction of a year is 20 months?
  • How long is 20 months expressed in years for financial calculations?

Conversion Definitions

Months: Months are time units used for measuring periods based on the lunar cycle or calendar months. The Gregorian calendar, commonly used worldwide, divides a year into 12 months, ranging from 28 to 31 days each. Months help organize the year into manageable periods for events and planning.

Years: Years are units of time representing the duration it takes Earth to orbit the Sun once, approximately 365.25 days. This unit is divided into 12 months and is the basis for calendar systems worldwide. Years are used to measure longer time spans like age, contracts, and historical dates.

Conversion FAQs

Why do we divide months by 12 to get years?

Because there are 12 months in one year, dividing the number of months by 12 converts the time to years. This conversion changes the unit from a smaller scale (months) to a larger scale (years), which is useful for expressing longer durations in a simpler way.

Can months be converted to years exactly in all cases?

In most cases, yes, since the calendar defines 12 months per year. However, because months vary in days, the exact number of days in months can differ. The conversion assumes an average month length within the 12-month year, making it accurate enough for general use.

What if the months value is negative?

A negative month value would indicate a time before a reference point, such as a date in the past. Dividing by 12 converts it to negative years, reflecting the same backward time span but expressed in years.

How precise is the conversion result when using decimals?

Decimal results give a precise fractional year value, but may not exactly match calendar months because months have varying lengths. Usually, rounding to four decimal places offers sufficient accuracy for practical purposes like finance or planning.

Is there a difference between calendar years and decimal years?

Calendar years count full years as per the calendar, while decimal years express years as a continuous decimal number to include fractions of years. Decimal years are useful for calculations, but calendar years are more common in everyday use.