02 / GUIDES
Guides
Practical walkthroughs that pair with our tools. Worked examples, the math behind the buttons, and the questions you actually want answered.
01/ALL GUIDES
How Much House Can I Afford? (The 28/36 Rule Explained)
Use the 28/36 rule to calculate how much house you can afford. Worked example from income to home price, with hidden costs most buyers miss.
May 26, 2026
Mortgage Calculator
How to Estimate Your AI API Costs Before You Build
Tokens in, tokens out, and the spreadsheet you will wish you had built before your first invoice arrived.
May 24, 2026
AI Pricing Calculator
Snowball vs Avalanche: Which Debt Payoff Method Saves More?
Two popular methods, one cheaper and one more motivating. Pick the right one for your situation and see how much each costs over time.
May 24, 2026
Debt Payoff Calculator