| What it does | Free online calculators and unit converters for finance, health, and everyday calculations
| Free Mifflin-St Jeor calculator that shows every step of the equation
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| Stage | Established
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - BMI and health calculators
- EMI and loan payment calculators
- Compound interest and investment projections
- US mortgage calculator with amortization tables
- TDEE and calorie calculators
- Currency converters with live exchange rates
- Embeddable calculator widgets for publishers
- Browser-based calculations for privacy
- Transparent formulas and source documentation
- Country-specific tax and payroll tools
| - Shows full equation working with step-by-step substitution
- Multiple activity levels from sedentary (×1.2) to extra active (×1.9)
- Katch-McArdle calculator using body fat percentage
- Step-based TDEE estimation
- Adaptive TDEE calculator from weight changes
- Embeddable calculator iframe
- Metric and imperial unit switching
- Comparison with other equations like Harris-Benedict
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| What makes it different | - Instant private results stored in browser only
- Transparent formulas and assumptions visible for every calculation
- Over 997 free tools with no account required
- Source-backed reference data and country-specific tools
- Embeddable widgets for educators and publishers
| - Shows all working so users can verify the math themselves
- Uses the most accurate equation for healthy adults
- Multiple calculation methods beyond basic equation
- Transparent about accuracy limitations and sources
- Completely free with no tracking or cookies
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 16 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 0 | 1 |
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| Citation Flow (Majestic) | 19 | 16 |
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| Referring domains (Majestic) | 5 | 3 |
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Calxo AI
TDEE Steps