Work it out.
Calculators
Dilution of essential oils
Procentregning · 20 dråber = 1 ml
Treatment price and hourly rate
Cost-plus prissætning · Dækningsbidrag
BMI (Body Mass Index)
WHO BMI-formel
Wax consumption per treatment
Producentdata (Lycon Wax Usage Chart)
Curing time for gel polish (UV/LED lamp)
Branchedata (UV/LED-hærdetider, neglelak-producenter)
Spray tan: DHA strength and solution consumption
Branchedata (spray tan-uddannelse: DHA-koncentrationer)
Dilution of surgical spirit
Fortyndingsformel (C1V1=C2V2) · SSI-anbefaling 70-85%
Period after opening (PAO)
EU-kosmetikforordning 1223/2009, bilag VII (PAO-symbol)
Chemical peel: recommended AHA concentration
AHA-grænser anbefalet af EU's videnskabelige komité (SCCS/SCCNFP)
Amount of sunscreen (2 mg/cm² rule)
FDA/ISO 24444-testregel (2 mg/cm²)
Brow tint: mixing ratio and processing time
Producentdata (RefectoCil brugsanvisning)
Lash lift: processing time by lash thickness
Producentdata (lash lift-kit brugsanvisning)
Massage oil consumption per treatment
Branchevejledning (massageuddannelse)
Basal metabolic rate (BMR)
Mifflin-St Jeor-ligningen (1990)
Ventilation in treatment rooms
BR18 generel ventilationsvejledning + Arbejdstilsynets krav om procesventilation
Tools that work in all subjects
Whatever your programme is called, these tools calculate the same — Pythagoras, area, percentages and units are not tied to one trade.
- Pythagorasa² + b² = c²Find the missing side, set out a right angle, check whether a room is square, and find the space diagonal.
- Area and perimeterm²Rectangle, triangle, trapezium, circle and composite shapes — area and perimeter.
- Volume and surface aream³ · lBox, cylinder, cone, sphere, pyramid, prism, pipe and frustum — also in litres.
- Percent%Percentage of, how many per cent, percentage change, discount and VAT.
- Scale and ratios1 : 50From drawing to reality, area and volume to scale, the rule of three and dividing in a ratio.
- Unit convertermm ↔ mFrom mm to km, Pa to bar and kB to GB — with the unit staircase.
- Time calculations and the clockt : minTime between two clock times, add time, and 1.75 h = 1 h 45 min for the timesheet.
- Slope and fall% · ° · 1:xFall from level to level, in per cent, per mille, degrees and mm per metre — and the height difference.
- Material consumption including wastem² + %Boards, paint, battens at c/c spacing and packs — for a composite surface or a whole room, with waste.