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Featured Guides
BMR vs TDEE, Explained: How the Three Formulas Compare
BMR is the floor. TDEE is the real number you eat against. Here's how Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle differ, when each is right, and why your smart-scale BMR disagrees with all of them.
How to Use Binary Converter — Complete Guide
Learn how to convert between binary, decimal, hexadecimal, and octal using the free Binary Converter on Tools.Town — all four bases at once, instant results.
How to Use Date Calculator — Complete Guide
Learn how to add and subtract days, weeks, months, and years from any date using the free Date Calculator on Tools.Town — find deadlines, expiry dates, and past dates.
How to Use CSV to JSON — Complete Guide
Learn how to convert CSV data to structured JSON using the free CSV to JSON tool on Tools.Town — with type inference, nested flattening, and multiple output modes.
Latest Guides
BMR vs TDEE, Explained: How the Three Formulas Compare
BMR is the floor. TDEE is the real number you eat against. Here's how Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle differ, when each is right, and why your smart-scale BMR disagrees with all of them.
16 May 2026
5 min read
Body Fat % vs BMI: Why One Tape Measure Beats Your Smart Scale
BMI can't tell muscle from fat. Body-fat % can. Here's the math behind the US Navy method, why a $5 tape beats most bioelectrical-impedance scales, and where each metric breaks down.
16 May 2026
5 min read
PPF, Explained: How the 7.1% Tax-Free Engine Actually Works
PPF is the only Indian retail product that's Govt-backed, §80C-eligible, and entirely tax-free at maturity. Here's how the math compounds, why timing matters, and the case for max-funding ₹1.5L every April.
16 May 2026
5 min read
UK Alcohol Units, Explained: The Math Behind '14 a Week'
One UK unit = 10 ml of pure ethanol. Here's where that number comes from, why a pint of normal lager is 2.3 units (not 2), how the 14-unit weekly guideline was set, and what the math doesn't tell you.
16 May 2026
5 min read
Verhoeff Algorithm Explained: How Aadhaar Detects Typos
The 12th digit of every Aadhaar number is a Verhoeff check digit. Learn how this 1969 algorithm catches almost every single-digit typo and most digit swaps — the same math you can verify yourself in our Aadhaar Format Validator.
16 May 2026
5 min read
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