Runaway Finance is a family-finance calculator platform. Retirement stays a major pillar — it is not the only one.
Free to use · No account required · Assumptions shown · Educational planning tools
Four journeys
Family
Growing a Family
What will having a child do to our finances?
Family costs show up as living, school, and later education — often before the rest of the household plan is settled. This journey is about whether you are ready, and what nest eggs raise a child through 18 and university.
Home
Buying a Home
What will the house really cost us — and can we afford it?
A mortgage payment is not the cost of the house. Tax, insurance, upkeep, and the rest of life sit beside it. If you already have the loan, extra payments can change how soon it is gone.
Savings
Building Savings
Can I reach this goal without undermining everything else?
A named goal only survives if competing expenses do not empty the pot you marked for it. Emergency and other savings are raided first; the earmarked money is last.
Retirement
Planning Retirement
When can I retire, how much do I need, and how long will my money last?
Retirement stays a major pillar. These tools step year by year: how long today’s savings last, how large the nest egg must be, how soon full-time work can end, whether claiming Social Security at 67 vs 70 helps, and which later-life housing path lasts farther.
Start a calculator
The homepage links straight to the tools, not only to category pages.
Calculator
Nest eggs for a child
When am I ready for a baby, and what nest eggs raise them through 18 and university?
Calculator
Can I get a mortgage
What will this house actually cost you once tax, insurance, and life sit beside the payment?
Calculator
Will the goal survive
Do competing expenses force a dip that dissolves the savings for this goal?
Calculator
How long before I go broke
Given what I have, how far does the money go?