Percent per year to doubling time in years
Type a value in %/year to get it in years instantly.
23.45years
That's 3.3× as fast as world population growth, while a 7 % a year investment is 2.3× faster. It doubles in 23.45 years and grows tenfold in 77.9 years.
Convert the other way: years to %/year
What it means
How fast is that growth?
Assumes steady compound growth. Percent rates compound once per period; “per hour” and “per day” rates are continuous.
The math
How to convert %/year to years
Doubling time = ln 2 ÷ ln(1 + r) periods, close to 70 ÷ percent; r = 2^(1 ÷ doubling time) − 1.
Example: 3 %/year = 23.4498 years.
Every unit
That growth in every unit
Tables
%/year to years conversion table
| %/year | years |
|---|---|
| 0.5 %/year | 138.976 years |
| 1 %/year | 69.6607 years |
| 2 %/year | 35.0028 years |
| 3 %/year | 23.4498 years |
| 4 %/year | 17.673 years |
| 5 %/year | 14.2067 years |
| 6 %/year | 11.8957 years |
| 7 %/year | 10.2448 years |
| 8 %/year | 9.00647 years |
| 10 %/year | 7.27254 years |
| 12 %/year | 6.11626 years |
| 15 %/year | 4.95948 years |
| 20 %/year | 3.80178 years |
years to %/year conversion table
| years | %/year |
|---|---|
| 3.8 years | 20.0103 %/year |
| 4.96 years | 14.9983 %/year |
| 6.12 years | 11.9922 %/year |
| 7.27 years | 10.0037 %/year |
| 9.01 years | 7.99674 %/year |
| 10.2 years | 7.03178 %/year |
| 11.9 years | 5.99775 %/year |
| 14.2 years | 5.00242 %/year |
| 17.7 years | 3.99378 %/year |
| 23.4 years | 3.00648 %/year |
| 35 years | 2.00016 %/year |
| 69.7 years | 0.999434 %/year |
| 139 years | 0.499912 %/year |
Quick answers
Quick answers
- How many years is 1 %/year?
- 1 %/year is 69.6607 years.
- How many years is 10 %/year?
- 10 %/year is 7.27254 years.
- How many years is 3 %/year?
- 3 %/year is 23.4498 years.
The units
About these units
Percent per year (%/year)
Compound annual growth rate.
Doubling time in years (years)
Years to double.
Keep going