MoneyLifeCalcGuides
Plain-English guides to the questions behind the calculators. Each one explains the idea, works through an example with real numbers, and links to a free calculator so you can try it with your own.
Budgeting and saving
Knowing where the money goes, building a cushion, and getting out of debt.
How to Keep a Yearly Money Ledger (the Method Behind This Site)A simple, proven way to track every bill month by month for the whole year, and why a ledger beats a budget alone. Free ledger included.Debt Snowball vs. Avalanche: Which Payoff Method Is Better?How the debt snowball and avalanche methods work, which saves more interest, and how to choose the one you will stick with. Free payoff calculator.How to Track Your Net Worth in 15 Minutes a MonthWhat counts toward net worth, how to value a home and car honestly, how often to record it, and how to read the trend. Free private tracker included.How Much Emergency Fund Do You Really Need?How to size an emergency fund from your essential expenses, when 3 months is enough and when to hold 12, where to keep it, and how to build it steadily.
Retirement and taxes
Making savings last, choosing when to claim Social Security, and the tax rules that shape retirement income.
Will My Retirement Savings Last to 100? How to Estimate ItEstimate how long your retirement savings will last with inflation, Social Security, and realistic returns, and what to change if money runs short.When to Claim Social Security: 62, 67, or 70?How claiming age changes your Social Security benefit, the break-even ages, and what married couples, workers, and early retirees should weigh first.Roth vs. Traditional: How to Choose Between Tax Now and Tax LaterThe one comparison that decides Roth vs. traditional 401(k) and IRA contributions, with a worked example, the 2026 limits, and when splitting makes sense.Required Minimum Distributions, Explained in Plain EnglishWhen RMDs start, how the IRS calculates them, deadlines and penalties, which accounts are exempt, and ways to plan ahead. With a worked example for 2026.
Home and building
Mortgages, refinancing, and what it takes to budget and finance a new house.
How Construction Loan Draws Work: A Plain-English GuideHow construction loans pay your builder in stages, how interest-only payments grow during the build, and what to ask your lender. Free draw calculator.What It Really Costs to Build a House: A Line-by-Line BudgetWhy the price per square foot is only the start. The seven lines of a real home building budget, where the money goes, and how to tighten your estimate.How to Compare Builder Bids (and What Cost per Square Foot Hides)A fair way to compare home builder bids: same plans, same specifications, allowances, exclusions, contract type, and cost per square foot used the right way.Refinance Break-Even: When a Lower Rate Is Worth the Closing CostsHow to work out a mortgage refinance break-even point, why resetting to 30 years can cost more, and whether to pay closing costs in cash or roll them in.
Disclaimer: These guides are for general education only and are not financial, tax, legal, or construction advice. Talk with a qualified professional about your situation.
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