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Decades to years

1 decade in years
1 decade = 10 yr
yr = decade × 10

To convert decades to years, multiply by 10. The table below gives the values people look up most often, and the converter works for any number.

Decades to years table

Common decade values converted to years.
Decades Years
1 decade 10
2 decade 20
3 decade 30
4 decade 40
5 decade 50
10 decade 100
15 decade 150
20 decade 200
25 decade 250
30 decade 300
40 decade 400
50 decade 500
75 decade 750
100 decade 1,000
250 decade 2,500
500 decade 5,000
1,000 decade 10,000

How the conversion works

The relationship is yr = decade × 10. Both units measure time, so the conversion is a fixed factor that never changes.

Year: Mean Gregorian year, 365.2425 days.

Common questions

How many years are in one decade?
One decade equals 10 years. yr = decade × 10.
How do you convert decades to years?
Use yr = decade × 10. So 10 decade is 100 yr.
How many decades are in one year?
One year equals 0.1 decades, which is the reverse of the conversion above.
Is there more than one kind of year?
Mean Gregorian year, 365.2425 days.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked