Blog
Real math for real decisions. Every post links to the calculator so you can run your own numbers.
September 23, 2026
How Big Should Your Emergency Fund Be in 2026? How to Find Your Number
How big should your emergency fund be? Not $1,000. Here is how to work out your real number from essential expenses, and why where you keep it matters.
September 23, 2026
How Much Does Car Insurance Go Up With a Teen Driver? (2026 Numbers)
How much does car insurance go up with a teen driver? About $3,900 to $4,500 a year for a 16-year-old in 2026 rate data. Why, and the discounts that cut it.
September 23, 2026
What $100 From 2020 Is Worth in 2026 (The Inflation Math Nobody Runs)
$100 from January 2020 takes about $130 today to buy the same basket of goods, per BLS data through August 2026. Here's the real math on what that does to your money.
September 14, 2026
Credit Card Minimum Payments vs. Fixed Payoff - The $10,500 Difference
On $8,000 at 22% APR, minimum payments take about 23 years and $13,600 in interest. A fixed $300 a month clears it in 37 months for about $3,100. The gap is real.
August 24, 2026
Refinance Break-Even: The Exact Month Your Refi Pays Off
A lower rate doesn't mean a refinance is worth it. The number that decides it is your break-even month. Here's how to find it before you sign.
August 20, 2026
Is It Worth It Calculator: Make Smarter Decisions
An "is it worth it" calculator turns a gut-feeling purchase into a number you can trust. Here's how the math works, and where to run it for your decision.
August 10, 2026
What a 1% Change in Your Mortgage Rate Really Costs (2026)
A 1% move in your mortgage rate isn't a rounding error. On a $400k loan it's about $257 a month and $92,000 over 30 years. Here's the real math.
August 8, 2026
Debt Avalanche vs. Snowball: Which Gets You Out Faster?
The avalanche saves the most interest, the snowball keeps you motivated. Here's the real math on both, and how to pick the one you'll actually finish.
August 3, 2026
Rent vs Buy in 2026: How Many Years Until Buying Actually Wins
Buying isn't automatically smarter than renting. With the 30-year fixed at 6.58% in July 2026 and record prices, here's how to find the year buying wins.
July 28, 2026
Consolidation Loan vs Balance Transfer: Which Clears Debt Cheaper?
Two ways to consolidate, two very different cost structures. How to tell which one actually saves you money, and what to look for in the loan terms.
July 28, 2026
Should I Pay Off Debt or Invest? Here's How to Actually Decide
The answer depends on one comparison: your debt's interest rate vs. your expected investment return. Here's the math, and when the 'rules' break down.
July 17, 2026
Driving vs Flying With a Family: Why Group Size Decides It (2026)
Add a fourth traveler and airfare multiplies while gas barely moves. What driving or flying actually costs per person for solo travelers, couples, and families, plus how booking timing changes the answer.
July 13, 2026
What a Home Warranty Actually Covers, and the Exclusions That Void Claims
Coverage limits, caps, and the contract terms that decide whether a claim gets paid. What to read before you sign, not just what it costs.
June 24, 2026
Auto Refinance Rates in 2026 and the Term Extension Trap
What auto refinance rates look like in 2026, why dealership markup is the best reason to refinance, and how a longer term quietly erases the savings.
June 23, 2026
Is a Personal Loan Worth It? When to Borrow and When to Wait
A personal loan can save you thousands on credit card debt or cost you thousands if you use it wrong. Here's the math to know which way it goes for you.
June 21, 2026
How Long Will It Take to Save $20,000? Two Numbers Decide
Calculate exactly how many months to reach any savings goal based on your monthly contribution and interest rate, and see what happens when you change either.
June 21, 2026
How Much Should You Tip in 2026? (And When It's Optional)
Tipping norms are murky. Here's what the Emily Post Institute recommends for restaurants, bars, delivery and services, plus a framework for making your own call.
June 21, 2026
Is Getting an Auto Loan Worth It? The Real Cost in 2026
At 6.9% APR on a $40,000 car, a 60-month loan costs about $7,400 in interest. Here's how to decide if financing makes sense and how to minimize what you pay.
June 21, 2026
Is Your Daily Coffee Habit Worth It? The Real Math
A $7 shop coffee five days a week costs about $1,820 a year; brewing at home runs about $130. Work out your own number and decide if it's worth it.
June 14, 2026
Contractor vs DIY: When It's Actually Worth Hiring a Pro
Not every home project is a DIY job, and not every contractor quote is worth paying. Here's a framework for the real cost-benefit math before you decide.
June 14, 2026
Is Your Salary Keeping Up With Inflation? A 2026 Reality Check
Inflation hit 4.2% for the 12 months ending May 2026. A 3% raise this year is actually a pay cut in real terms. Here's how to run the math on what your money is really worth.
June 14, 2026
Should I Buy Crypto in 2026? A Framework for Sizing Your Position
Before you buy crypto, here's how to think about position sizing, volatility, and crypto's role in a portfolio.
June 14, 2026
What Does a Mortgage Actually Cost Per Month in 2026?
At 6.52% (June 2026), a $300K mortgage costs about $1,900 a month in P&I. Add taxes, insurance and upkeep and the real cost is much higher. Here's the math.
June 10, 2026
The Hidden Cost of Food Delivery Apps
In one example, a $40 delivery order comes to $60.71 after fees and an 18% tip, a 52% markup. Here's what a delivery habit can cost you per year.
June 10, 2026
How Inflation Quietly Destroys Your Savings
Inflation doesn't just raise prices, it silently erodes the purchasing power of every dollar you're not investing. Here's the math most people ignore.
June 10, 2026
How Much Does Commuting Actually Cost Per Year?
Gas is just the start. Depreciation, insurance, tires and your time are the costs people leave out. Here's how to calculate your true annual commute cost.
June 10, 2026
How to Vet an Online Course Before You Buy: 5 Checks
A five-step screen for online courses: define the outcome, read what the sales page omits, run the pre-mortem, and read price tiers for what they signal.
June 10, 2026
How to Use the 28/36 Rule Before Buying a Home
The 28/36 rule is the clearest debt-to-income guideline in mortgage lending. Here's exactly how it works and what it tells you before you start house-hunting.
June 10, 2026
Is Paying Off a Personal Loan Early Worth It?
Early loan payoff saves interest, but it's not always the optimal move. Here's how to calculate whether prepaying beats your alternatives.
June 10, 2026
What a High-Yield Savings Account Actually Earns vs. Inflation
High-yield savings accounts pay far more than the FDIC's national average, but inflation was 3.4% in August 2026. Here's what you earn in real terms.
June 10, 2026
What Is a HELOC and When Does It Actually Make Sense?
A HELOC gives you access to home equity as a revolving credit line. Here's when it's a smart financial tool, and when it's a trap in disguise.
May 14, 2026
How Much Are You Really Spending on Streaming Services?
Streaming prices keep climbing and most households have never added up the total. Here's how to audit your stack and cut what you're not watching.
May 14, 2026
The January Effect: Why Gyms Count on You Not Showing Up
Gyms are priced on the assumption that most members stop coming. How the business model works, how to audit a membership you already have, and the 90-day reset.
May 14, 2026
Is Refinancing Worth It? The Real Math Behind the Decision
Refinancing sounds like free money, but closing costs, break-even timelines, and how long you plan to stay make the math complicated. Here's how to decide.
May 14, 2026
Mileage Limits and Depreciation: The Two Costs That Decide Lease vs Buy
Mileage penalties are the lease-killer and depreciation is the buyer's. Which one applies to you decides the answer more than the monthly payment does.
May 9, 2026
How Long Will It Take to Pay Off Your Credit Card Debt?
How long payoff actually takes at your balance and rate, what minimum payments really cost you, and three real situations worked all the way through.
May 9, 2026
How Much Do Solar Panels Cost in 2026? Prices and Payback
What a home solar system costs now that the federal credit has expired, how payback works, and three example households with very different answers.
May 9, 2026
Is Your Credit Score Costing You Money Right Now?
The average FICO score is 714 (FICO, August 2026), but even good credit costs you thousands on loans and mortgages. Here is how to see what yours costs.
May 9, 2026
Personal Loan Interest Rates in 2026: What You Will Actually Pay
Where personal loan rates stand in 2026, how your credit score moves them, and the full cost math on three common borrowing situations.
May 9, 2026
Should You Rent or Buy a Home in 2026? Here's the Math
The 30-year fixed was 6.23% in April 2026 and prices are still high. An honest look at when buying makes sense, when renting wins, and how to run your numbers.
May 9, 2026
Why Is My Electric Bill So High? (2026 State-by-State Breakdown)
Why your neighbor may pay half what you pay, what actually drives a high electric bill by state, and which fixes move the number versus which do not.