Every unit converter on the web feels like it was built by a different person who had never seen a unit converter before. CalcMaster's 10 converters share one unified UX: pick a "from" unit, pick a "to" unit, type a number, get the answer in any other unit at the same time. No multi-step flows, no surprise reloads.
The ten
| Category | Use it for |
|---|---|
| Length | m, km, mi, ft, in, yd, nautical miles |
| Mass | kg, g, lb, oz, ton (US/UK/metric) |
| Temperature | °C, °F, K (the only one that needs an offset, not just a factor) |
| Area | m², ft², acre, hectare, sq mile, bigha |
| Volume | L, gal (US/UK), m³, cup, tbsp, tsp |
| Speed | km/h, mph, m/s, knots |
| Time Units | sec, min, hr, day, week, month, year |
| Data Storage | B, KB, MB, GB, TB — and the SI vs binary gotcha |
| Energy | J, kJ, kWh, cal, kcal, BTU |
| Pressure | Pa, kPa, bar, atm, psi, mmHg |
The data-storage gotcha
This deserves its own callout: a "kilobyte" can mean 1000 bytes (decimal, SI) or 1024 bytes (binary, KiB). Hard-drive makers use 1000. Operating systems traditionally used 1024 but called it "KB". The IEC standard says KB = 1000, KiB = 1024. CalcMaster supports both and labels them clearly.
Why a unified UI matters
Once you've learned how one converter works on CalcMaster, you've learned all ten. There's no time wasted figuring out which dropdown is which. The "from" value drives a live grid of every "to" value at once — so converting 5 km to all common units takes a single keystroke.
Open the converter category for the full set.