Work it out.
Calculators
2-component mixing calculator (filler, primer, clear coat)
Ren matematik — du indtaster selv blandingsforholdet fra produktets datablad
Surface area for painting and filling
Ren geometri — areal = længde × bredde, du indtaster egne mål
Material consumption based on coverage
Ren matematik — du indtaster dækkeevnen fra produktets datablad
Damage percentage and total loss limits
Registreringsafgiftsloven § 7
Shielding gas: how long does the cylinder last?
Fysik (Boyles lov) + ESAB-anbefaling 10-12 l/min
Weight of a sheet piece (steel, aluminium, stainless)
Materialedata: stål 7 850 kg/m³ (EN 1993-1-1), alu 2 700 kg/m³
Developed length at a 90° bend
Geometri (neutral akse / K-faktor, DIN 6935-princip)
Welding wire: consumption and spool life
Geometri + ståldensitet 7 850 kg/m³
VOC content and emissions when painting
Direktiv 2004/42/EF (VOC i autoreparationslakering)
Spray booth: air volume and air changes
Arbejdstilsynets bilag 7 (mindst 0,2 m/s) + DS/EN 16985
Heating cabin air: power and cost
Fysik: luftens varmekapacitet ρ·cp ≈ 0,34 Wh/(m³·K)
Compressed air: does the compressor cover the tool?
Producentdata (værktøjs- og kompressordatablade)
Thermal expansion of a panel (steel/aluminium)
Materialedata: α = 12·10⁻⁶/K (stål), 23·10⁻⁶/K (aluminium)
Adhesive and sealant bead: consumption and number of cartridges
Geometri (trekantet limstreng)
Repair costing with VAT
Forholdsregning + momsloven (25 %)
Bent bracket
Exact flat pattern
Flat plate, flange and blank
Exact flat pattern
Part-cylindrical jacket
Exact flat pattern
Stair stringer
Exact flat pattern
Wheel arch repair panel
Exact flat pattern
Strip layout for a stamping die
Exact flat pattern
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.