| Key features | - Country-specific calculators for US, UK, Canada, Australia, New Zealand, South Africa, Ireland, Germany, and Netherlands
- Annual rate guides with tax-year specificity
- Free downloadable log templates in Excel, Google Sheets, and PDF
- Source citations linking calculations to IRS, HMRC, CRA, and ATO publications
- Support for multiple vehicle types and mileage purposes
- Miles and kilometers input support
- Reimbursement policy and form templates
- Direct monitoring of government rate changes and updates
| - 38 free calculators for money, health, and time questions
- Mortgage calculator with monthly payment, taxes, insurance, and amortization schedule
- Debt payoff calculator comparing snowball vs avalanche strategies
- Instant results with no loading screens
- Privacy-first: calculations run in browser only
- Support for 150+ currencies
- Printable worksheets for budgets, trackers, and savings challenges
- 55 in-depth guides covering financial and health topics
- Standard published formulas used by lenders and institutions
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| What makes it different | - Official source citations on every rate and calculation
- No affiliate relationships or commercial sponsorships influencing calculations
- Single workflow from rate lookup to estimate to recordkeeping
- Tax-year specific rates updated annually from official government sources
| - No sign-ups, accounts, or downloads required
- Real formulas from lenders and scientific institutions instead of estimates
- Privacy-first: everything runs in browser with no data collection
- Instant results that update as you type
- Clean, clutter-free interface with no ads or noise
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