Please Note: the fastest way to get to output is to enter the numbers and hit TAB after each one. For example, when you load the page, the cursor is already in the Total Return text box, so you could type: 4-4-TAB-2-4-TAB and see that 44% gain over 24 months is 20% gain per year.

Total Return: %
Time to get that return: months

Please fill in the input values above.

annualized_return(total_return,months)=Math.pow(total_return, 1/(months/12))

In English, it means that to get the annualized return, you take the total return (for instance, 1.44 if we got an input of 44% total return) and take the Nth root for N total years (for instance, for 24 months, N=2 since it's 2 years). This is the same as raising the total return to the power of 1/N. For instance, 237.5% gain over 3 years (36 months) means (1+2.375=3.375 raised to the power of 1/3 which is 1.5, so 50% each year.