Eenhedenfamilies

Eenhedenfamilies

UnitCloud is een lokaal meetlaboratorium voor dagelijks werk, techniek, IT, energie, mobiliteit en ontwerp.

Lengte

Inch, foot and mile use fixed factors. Errors usually come from early rounding or from mixing land miles and nautical miles.

Tabel
Basiseenheid
m
Doelwaarden
11
Unit
nm, µm, mm, cm, m, km

Oppervlakte

Area scales quadratically. A length factor is not automatically an area factor.

Tabel
Basiseenheid
Doelwaarden
8
Unit
mm², cm², m², km², ha, acre

Volume

Volume is robust for liquids. For dry ingredients it does not replace weighing because density and packing vary.

Tabel
Basiseenheid
l
Doelwaarden
11
Unit
ml, cl, dl, l, m³, tsp

Massa

Pound is not always the same local unit. UnitCloud uses international avoirdupois values.

Tabel
Basiseenheid
g
Doelwaarden
8
Unit
µg, mg, g, kg, t, oz

Temperatuur

Temperature uses an offset. Fahrenheit and Kelvin are not pure factor units.

Tabel
Basiseenheid
°C
Doelwaarden
4
Unit
°C, °F, K, °R

Data

KB, MB and GB are decimal. KiB, MiB and GiB are binary. This distinction explains many apparent storage gaps.

Tabel
Basiseenheid
Byte
Doelwaarden
10
Unit
bit, B, KB, MB, GB, TB

Snelheid

Knots are nautical miles per hour. mph and knots are not interchangeable imperial speeds.

Tabel
Basiseenheid
m/s
Doelwaarden
5
Unit
m/s, km/h, mph, kn, ft/s

Energie

Food calories are kilocalories. Utility bills use kilowatt-hours. Both are energy units, but in different contexts.

Tabel
Basiseenheid
J
Doelwaarden
8
Unit
J, kJ, Wh, kWh, cal, kcal

Vermogen

PS and hp are not identical. Vehicle data often uses metric horsepower, while US/UK contexts often use mechanical horsepower.

Tabel
Basiseenheid
W
Doelwaarden
6
Unit
W, kW, MW, PS, hp, BTU/h

Druk

bar, psi and atm appear in different fields. Tyre, weather and lab values need context.

Tabel
Basiseenheid
Pa
Doelwaarden
8
Unit
Pa, kPa, MPa, bar, mbar, psi

Dichtheid

Density depends on temperature, material state and measurement conditions. Unit conversion does not replace material data.

Tabel
Basiseenheid
kg/m³
Doelwaarden
4
Unit
kg/m³, g/cm³, g/l, lb/ft³

Tijd

Calendar months and years vary. This family uses fixed seconds for technical durations, not legal deadlines.

Tabel
Basiseenheid
s
Doelwaarden
7
Unit
ms, s, min, h, d, week

Hoek

Degrees and radians are often mixed in software, geometry and trigonometry. Formulas usually expect a specific angle unit.

Tabel
Basiseenheid
rad
Doelwaarden
6
Unit
rad, °, gon, turn, ′, ″

Kracht

Force and mass are not the same. Kilogram is mass, newton is force.

Tabel
Basiseenheid
N
Doelwaarden
5
Unit
N, kN, MN, lbf, kgf

Koppel

Torque is not power. Newton metre and hp/kW answer different questions.

Tabel
Basiseenheid
N·m
Doelwaarden
4
Unit
N·m, lb·ft, lb·in, kgf·m

Verbruik

mpg and l/100 km move in opposite directions. Higher mpg means lower consumption; higher l/100 km means higher consumption.

Tabel
Basiseenheid
l/100 km
Doelwaarden
4
Unit
l/100 km, km/l, mpg US, mpg imp

Typografie

px depends on output context. UnitCloud uses the CSS reference of 96 px per inch.

Tabel
Basiseenheid
pt
Doelwaarden
6
Unit
pt, pc, in, mm, cm, px

Beeldresolutie

Pixel count and print density are different. Print sizes also need width, height and ppi.

Tabel
Basiseenheid
px
Doelwaarden
4
Unit
px, kpx, MP, GP

Frequentie

rpm and bpm are events per minute. Hz is events per second.

Tabel
Basiseenheid
Hz
Doelwaarden
6
Unit
Hz, kHz, MHz, GHz, rpm, bpm