Tools & calculators / Plan your household runway
LifeMeter · Updated October 3, 2026
Plan your household runway
Compare shared savings with the time each partner wants to plan for.
Your comparison
Change the inputs and select Update result.
How this works
Return is a constant assumption, not a forecast. We convert it to a real monthly rate, apply growth, then withdraw at the end of each month. Spending stays constant in today’s dollars. This omits market volatility, changing income, large one-off expenses and sequence risk. Try lower returns and higher spending as well.
Each planning window is chosen age minus current age. Shared savings are compared with the longer window. This assumes the same household withdrawal throughout; it does not predict either partner’s lifespan or model survivor income and expenses.
General education, not medical or financial advice. Results depend on the supplied assumptions and do not guarantee outcomes.