About conversionsofeverything.com
conversionsofeverything.com is a simple, fast, no-nonsense unit converter and tools hub. It’s built as a lightweight, static site: just HTML, CSS and JavaScript — no log-ins, no clutter, and only basic anonymous analytics so we can see what people actually use.
The site started with one goal: make it effortless to convert everyday values like kg to lb, cm to inches, °C to °F, or litres to gallons without pop-ups, distractions, or confusing interfaces. From there it’s grown into a collection of focused tools for fitness, cooking, DIY, travel, study and work.
What you can do here
On the Unit Converter home page you can quickly switch between categories like:
- Length – metres, centimetres, millimetres, inches, feet, yards, miles, nautical miles
- Mass / weight – kilograms, grams, stone, pounds, ounces, tonnes
- Temperature – Celsius, Fahrenheit, Kelvin, Rankine
- Volume – litres, millilitres, US gallons, UK gallons, cubic metres, cups
- Area – square metres, acres, hectares, square feet, square miles
- Speed – km/h, mph, m/s, knots, ft/s
- Time – seconds, minutes, hours, days, weeks, years
- Pressure – bar, psi, kPa, atm, mbar, mmHg
- Energy & power – joules, calories, kWh, BTU, watts, kilowatts, horsepower
- Data & digital storage – bits, bytes, KB, MB, GB, TB
- Angles & frequency – degrees, radians, gradians, turns, Hz, kHz, MHz, GHz, rpm
Beyond conversions, the Tool Hub brings all the extra utilities into one place — including timers, clocks, countdowns, random pickers and more. Each tool lives on its own clean page, with a direct link you can bookmark or share.
How the converter works
Under the hood, the main converter uses a single JavaScript object that defines all categories and units. Each category has one base unit. Every conversion happens in two steps:
- The value you enter is converted into the base unit for that category.
- That base value is then converted into your chosen target unit.
For example, all lengths are converted via metres, all masses via kilograms, all energies via joules, and so on. This keeps the maths consistent and avoids rounding errors building up when you convert between unusual pairs.
Accuracy and conversion factors
The conversion factors on this site follow standard, widely accepted definitions, for example:
- 1 inch = exactly 2.54 centimetres
- 1 international avoirdupois pound = exactly 0.45359237 kilograms
- 1 nautical mile = exactly 1852 metres
Results are rounded to a sensible number of digits for readability, but the internal calculations keep more precision than most everyday or professional use requires.
Why so many landing pages?
People rarely search for “general unit converter”. Instead, they type very specific phrases into Google, like:
- “kg to stone”
- “cm to inches”
- “psi to bar”
- “litres to us gallons”
- “mb to gb”
To make those searches more helpful, conversionsofeverything.com has dedicated landing pages for hundreds of common and niche conversions. Each one:
- Uses a clear, SEO-friendly title and description (including UK/US spellings),
- Explains what the units mean in plain English, with real-world examples, and
- Includes a blue button that opens the main converter with that exact pair pre-selected.
Quick examples you can try
You can link directly to any conversion using URL parameters:
?cat=<category>&from=<unit>&to=<unit>. For example:
Free tools beyond conversions
The site is growing into a broader collection of lightweight tools you can run right in your browser. In the Tool Hub you’ll find:
- A full-screen clock with multiple styles (digital, analogue, flip clock, minimalist)
- Countdown timers and interval timers for workouts, Pomodoro, and study sessions
- Stopwatches with laps and shareable results
- World clocks for different cities and time zones
- Random pickers and number generators for quick decisions
- More focused utilities added over time based on user feedback
Contact and feedback
If you spot a typo, want a new unit or tool added, or have an idea that would make the site more useful, you’re very welcome to get in touch via the contact page.
Genuine feedback helps decide which new conversions, categories and tools we build next — from obscure unit pairs to new timers, clocks and calculators.