A free UnitConverters.net alternative that runs in your browser
UnitConverters.net is the most popular online unit converter, with thousands of /x-to-y pages and 17 million organic visits a month. The catch: every page is wrapped in Google AdSense
slots, the results page forces a click-to-reveal flow, and the site tracks every visit. Uttir
does the same job for the most-searched conversions — without ads, without signup, without
tracking — and each page has a working converter you can use right there.
Quick answer
If you want a no-ads, no-signup unit converter that runs entirely in your browser, use Uttir. It has dedicated pages for the 40+ most-searched unit conversions (cm to inches, kg to lbs, Celsius to Fahrenheit, miles to km, liters to gallons, etc.), each with a focused converter, a definitions section, a common-values table, a formula, and related conversions. The trade-off: Uttir is not a 7,000-page encyclopedia of every obscure unit. It targets the 90% of queries that real users actually search.
Feature comparison
| Feature | Uttir | UnitConverters.net |
|---|---|---|
| One-click conversion | ||
| Common conversions table (1, 2, 3, 5, 10, 100…) | ||
| Formula + worked example on every page | ||
| Definitions of both units | ||
| Related conversions (with links) | ||
| Mobile-friendly interactive converter | ||
| Dark mode | ||
| No ads anywhere | ||
| No upload of any data (everything runs in browser) | ||
| No tracking / analytics / third-party scripts | ||
| No signup, no account | ||
| No daily limit on conversions | ||
| Loads instantly (no 1 MB of ad scripts to download) |
Try the cm-to-inches converter
The most-searched unit conversion on the internet. Use it right here.
Or jump to the full cm to inches page with the table and formula.
The 10 most popular conversions
Every link below is a dedicated page with a working converter, a definitions section, a common-values table, the formula, and related conversions. No click-to-reveal, no ads, no popup.
- cm to inches /cm-to-inches
- kg to lbs /kg-to-lbs
- mm to inches /mm-to-inches
- lbs to kg /lbs-to-kg
- Celsius to Fahrenheit /celsius-to-fahrenheit
- km to miles /km-to-miles
- meters to feet /m-to-feet
- liters to gallons /liters-to-gallons
- mph to kph /mph-to-kph
- hp to kW /hp-to-kw
All 46 conversion pages in one place.
What stays the same
Both sites follow the same SEO playbook: one focused page per x-to-y conversion
query, with a converter, a table, a formula, and related links. The output values are identical
to four or more decimal places (the underlying math is the same SI/imperial conversion factors).
What Uttir does differently
- No ads. UnitConverters.net is wrapped in Google AdSense slots. Every page loads ~500 KB of ad scripts before you see the result. Uttir has no ads. The whole page is the tool.
- No click-to-reveal. UnitConverters.net hides the actual number behind a "Convert" button to force another ad impression. Uttir shows the answer instantly as you type.
- No tracking. No Google Analytics, no Google Tag Manager, no third-party scripts on tool pages. Your conversion history is not recorded anywhere.
- No daily limit. Some UnitConverters.net features rate-limit free users. Uttir is uncapped.
- Mobile-native. The converter widget is built for phones — big tap targets, numeric keyboard, instant feedback. UnitConverters.net's interface is desktop-first.
- Dark mode. Uttir follows your system preference. UnitConverters.net is always white-on-green.
What Uttir does not do
- 7,000+ obscure unit pages. UnitConverters.net has pages for "long cubit to mile", "fathom to meter", "barleycorn to parsec", and so on. Uttir targets the ~50 conversions that real users actually search for. If you need the ultra-long tail, UnitConverters.net still wins on coverage.
- Currency conversion. Currency rates change daily and would need a live data feed. Uttir is a static site and does not (yet) do FX conversion.
- Highly specialized engineering units. Thermal conductivity, magnetic flux density, radiation absorbed dose — all of these have UnitConverters.net pages. Uttir has the 8 most common engineering categories (pressure, energy, power, force, angle, fuel, typography, data) plus the 5 everyday ones (length, mass, temperature, volume, speed).
Verify the no-tracking claim
Open any Uttir tool. Open DevTools, go to the Network tab, and run a conversion. The only requests are the static assets that make up the page. There is no analytics call, no third-party fetch, no upload. The math runs in JavaScript on your device.