Financial Tools

Powerful calculators to help you understand compound growth and plan your financial future.

Compound Interest Calculator

See how your money grows with the power of compounding

$
$
%
yrs

Results

Final Balance

$0

Total Contributions

$0

Total Interest Earned

$0

Interest as % of Final

0%

Growth Over Time

Savings Rate Calculator

Your savings rate is the #1 predictor of when you'll reach FIRE

$
$
%

Your Savings Rate

29%

Good — on the right track

Monthly Savings

$0

Annual Expenses (implied)

$0

Estimated Years to FIRE

assuming 25x annual expenses as target

How you compare:

Average American~5%
Good saver15-25%
FIRE-bound50%+
Extreme FIRE70%+

Home Affordability Calculator

Find out how much house you can afford based on your income and debts

Income & Debts

$
$

Mortgage Details

%
yrs
%

Additional Costs

%
$
$

Maximum Home Price

$0

Total Monthly Payment

$0

Monthly Breakdown

Principal & Interest $0
Property Tax $0
Insurance $0
PMI $0
HOA $0

Loan Summary

Down Payment $0
Loan Amount $0
Total Interest Paid $0

Debt-to-Income Ratios

Front-end (housing only) 0%
Back-end (all debts) 0%

Payment Breakdown

Amortization Schedule

Early years: mostly interest. Later years: mostly principal.

72

Rule of 72

Estimate how long it takes to double your money

Divide 72 by your expected annual return rate to estimate the years needed to double your investment. Simple, powerful, and surprisingly accurate.

36 yrs

at 2%

18 yrs

at 4%

12 yrs

at 6%

10.3 yrs

at 7%

7.2 yrs

at 10%

6 yrs

at 12%