The Daily Calcs Blog
Guides, explainers, and practical tools across finance, health, and everyday math - written by the people who build the calculators.
Blog posts
- Finance Aug 5, 2026
Mortgage Rate History Payment Impact (2026)
See what every PMMS rate era cost on a $300k 30-year loan - monthly P&I and lifetime interest from 1971 to 2026. Free analysis.
Rajkishor Sahu - Finance Aug 5, 2026
Mortgage Denial Rates by County - HMDA (2026)
2025 HMDA: Polk County FL leads at 17.42% denial rate. Rankings across 137 counties in 20 states. Snapshot verified Oct 16, 2026. Free calculator.
Rajkishor Sahu - Finance Jul 13, 2026
Car Loan Amortization with Extra Payments Guide (2026)
Your minimum payment stays the same but extra principal changes when you reach zero. Here is what the numbers look like across different loan sizes.
Rajkishor Sahu - Finance Jul 13, 2026
HELOC Amortization Schedule - Interest-Only (2026)
Your HELOC payment jumps when the draw period ends. Here is what determines the new number and how to plan for it.
Rajkishor Sahu - Finance Jul 13, 2026
VA Loan Inspection Requirements - MPR Guide (2026)
Three separate checks happen during a VA purchase. Here is what each covers, who pays, and what happens when something fails.
Rajkishor Sahu - Finance Jul 13, 2026
How to Assume a VA Loan - Fee & Equity Math (2026)
Instantly compare assuming a VA loan vs a new mortgage. See the 0.5% funding fee, equity gap cash, and three payment examples. Free calculator.
Rajkishor Sahu - Finance Jul 13, 2026
Personal & Business Loan Amortization (2026 Guide)
Instantly build a personal or business loan amortization schedule. Get the payment formula plus three worked examples ($8k-$75k). Free calculator.
Rajkishor Sahu - Finance Jul 13, 2026
Should I Refinance to a 15-Year Mortgage Now? (2026)
Instantly decide if a 15-year refinance is worth higher payments. Compare interest saved and break-even across three scenarios. Free calculator.
Rajkishor Sahu - Crafts Jul 2, 2026
How DMC Thread Color Matching Works - RGB vs Perceptual (2026)
Learn how DMC floss color matching works. Why simple RGB converters fail, how perceptual matching (CIEDE2000) ranks threads, and how to verify colors on fabric.
Rajkishor Sahu - Pets Jun 29, 2026
Cat Age in Human Years - Month Quick Reference (2026)
How old is 4 months in cat years? About 5 human years. 6 months ≈ 8; 10 months ≈ 14. Full cat age lookup table plus free birthday and weeks calculator.
Rajkishor Sahu - Pets Jun 29, 2026
How to Tell a Cat's Age: Physical Signs vs. Calculator (2026)
How to tell how old a cat is: teeth, eyes, coat, and behavior markers, then verify with the free cat age calculator. Kitten teeth under 7 months. Senior at 11+.
Rajkishor Sahu - Finance Jun 28, 2026
Average Home Price by Zip Code & State (2026)
See 2026 average home prices by state and zip-level benchmarks. Compare medians and monthly payment impact. Free home affordability calculator.
Rajkishor Sahu