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
- PetsJun 28, 2026
Is Pet Insurance Worth It - Estimate Cost (2026)
Pet insurance averages $47/month for dogs and $29/month for cats. Enter species, age, and breed to estimate your premium. Free cost estimator.
- PetsJun 28, 2026
Pet-Friendly Cities Ranked - Vet Access and Costs (2026)
Portland, Denver, and San Diego lead in dog parks and vet access. See 20 cities ranked by parks, vet density, pet costs, and walkability. Free cost tools.
- PetsJun 28, 2026
Pet Vaccination Schedule - When Shots Are Due (2026)
Puppies need shots at 6-8, 10-12, and 16 weeks; kittens at 8, 12, and 16 weeks. See AAHA and AAFP vaccine schedules by age. Free schedule calculator.
- PetsJun 28, 2026
Puppy Growth Calculator - How Big Will Puppy Get (2026)
A 4-month Labrador at 35 lb typically reaches 65-75 lb adult weight. See growth curves by breed size and age-based weight predictions. Free growth calculator.
- PetsJun 28, 2026
Senior Cat Care by Age - What to Expect at 10-15 (2026)
A 10-year-old cat equals 56 human years; at 15, it's 76. See AAFP senior care milestones, vet screening schedules, and diet changes by age. Free age tool.
- PetsJun 28, 2026
Small vs Large Dog Lifespan - Full Comparison (2026)
Small dogs live 12-16 years; giant breeds live 6-10. See lifespan data by size category, top long-lived breeds, and why large dogs die younger. Free age tool.
- PetsJun 28, 2026
When Is a Dog Senior - By Size and Breed (2026)
A Chihuahua becomes senior at 11-12 years; a Great Dane at 5-6. See AAHA life stage thresholds by size and breed with human-year equivalents. Free tool.
- EverydayJun 27, 2026
Cost of Living Comparison by City - Salary Guide (2026)
Compare cost of living by city with equivalent salary math. See how $85k in Austin compares to San Francisco, NYC, and Houston. Free COL calculator.
- EverydayJun 27, 2026
Hourly Rate Calculator - What Is Your Time Worth? (2026)
Convert salary to hourly rate instantly. See what $60k, $75k, or $100k really pays per hour after your work schedule. Free salary-to-hourly calculator.
- FinanceJun 24, 2026
Boat & RV Loan Amortization Guide (2026)
Calculate boat and RV loan amortization with down payment, term, and annual percentage rate (APR). Worked examples, term ranges, and a free loan calculator. Updated 2026.
- FinanceJun 24, 2026
Build an Amortization Schedule in Excel (Free Template) 2026
Build a free amortization schedule in Excel with PMT, IPMT, and PPMT formulas, or export a ready CSV from our online calculator. Step-by-step, 2026.
- FinanceJun 24, 2026
DTI & Mortgage Prequalification Guide (2026)
Learn front-end and back-end debt-to-income (DTI) ratio limits for mortgage prequalification. Free DTI calculator with the 28/36 rule. CFPB-sourced guide.