Numerly
Every unit converter and calculator. Instant, no ads.
Numerly is a collection of 150+ single-purpose converters and calculators built for speed. Every tool calculates instantly as you type — no submit buttons, no page reloads, no ad banners pushing the answer below the fold. Length, mass, volume, temperature, speed and time converters; tip, TDEE, one-rep-max, GPA and percentage calculators; plus wheels and generators. Everything runs client-side so it is instant and works offline.
Features
150+ unit converters: kg to lbs, cm to inches, celsius to fahrenheit and more. Two-way conversion: type in either field, both update live. Answer visible above the fold in under a second. Calculators: tip, TDEE, one-rep-max, GPA, percentage. Decision wheels and generators. Free embeddable widgets. Zero ads, zero sign-up, works offline.
Use Cases
Quick kitchen conversions while cooking or baking (grams to cups, ml to oz). Fitness tracking: TDEE, one-rep-max, body weight conversions. Students converting units or calculating GPA and percentages. Splitting bills and calculating tips when traveling. Bloggers embedding a converter directly into their articles.
Comments
Hey! I built Numerly because every time I googled "kg to lbs" I landed on a page where the answer was buried under three ad banners. Numerly's rule: the answer is visible in the first viewport, in under a second, with no ads. 150+ tools so far — converters, calculators, wheels and generators. Everything runs client-side so it's instant and works offline. Free embeds for bloggers too. Would love feedback on what tool to build next! Launch Options: click Schedule launch and pick the earliest Tuesday, Wednesday, or Thursday available (midweek gets the most eyeballs; weekends are dead). Goes live 12:00 AM Pacific on that day. Then hit whatever final submit/confirm button it shows — and that's Fazier done end-to-end. 🎉
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Comments
Hey! I built Numerly because every time I googled "kg to lbs" I landed on a page where the answer was buried under three ad banners. Numerly's rule: the answer is visible in the first viewport, in under a second, with no ads. 150+ tools so far — converters, calculators, wheels and generators. Everything runs client-side so it's instant and works offline. Free embeds for bloggers too. Would love feedback on what tool to build next! Launch Options: click Schedule launch and pick the earliest Tuesday, Wednesday, or Thursday available (midweek gets the most eyeballs; weekends are dead). Goes live 12:00 AM Pacific on that day. Then hit whatever final submit/confirm button it shows — and that's Fazier done end-to-end. 🎉
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