Put in a few numbers. Then see what happens if your income stops.
You’re adding $3,000 a month.
At this pace, your money isn’t running out.
Rough maths: savings go first, investments grow about 5% a year. Not advice.
Keep track of your money, see what’s ahead, and try changes before making them.
Coming to iPhone, iPad & Android.
Curious how it works underneath? Read the notes
Financial runway is the time your available money could cover the gap between what comes in and what goes out. It turns a balance into something easier to use: months and years.
The calculator works month by month. It uses savings first, lets investments grow at the stated annual assumption, then draws from investments when savings are gone. The “What if I lost my income?” button runs the same numbers with monthly income set to zero.
This is deliberately rough maths. It does not model taxes, inflation, market volatility, fees, debt repayments or one-off surprises. Use it to compare scenarios, not as a promise about the future.
Read the calculation and assumptions