Work it out.
Calculators
Degree-day-corrected heat consumption
Graddage (Teknologisk Institut)
Paint consumption for walls
Geometry
Fresh air requirement in a classroom
BR18 (ventilation, undervisningslokaler)
Fresh air requirement in a day-care institution
BR18 (ventilation, daginstitutioner)
Chlorine dosing for pool water
Svømmebadsbekendtgørelsen (BEK nr. 918/2016)
Playground impact surfacing — layer thickness and quantity
DS/EN 1177 (faldunderlag)
Road salt — spreading rate and consumption
Vinterregulativ (kommunal vintertjeneste)
Snow clearing — time spent
Ratio arithmetic
Waste volume for the property
Miljøstyrelsen (affaldsstatistik)
Dilution of cleaning concentrate
Forholdsregning / producentdata (doseringsforhold fra etiket)
Pressure washer — water consumption and time
Producentdata (højtryksrenser-datablad)
Stair formula (Blondel's formula) — rise and going
Blondels formel + BR18 (adgangsforhold)
Fall on drain pipe and floor
DS 432 (afløbsinstallationer)
Lighting level in an outdoor area
DS/EN 12464-2 (udendørs belysning)
Fertiliser dosage for lawns and green spaces
Producentdata (gødningssæk) / Forholdsregning
Edge profile — free bend profile in thin sheet
Exact flat pattern
Bent bracket
Exact flat pattern
Edge-bent panel
Exact flat pattern
Gutter — half-round, quarter-round and box
Exact flat pattern
Chimney flashing, 4-part
Exact flat pattern
Vent cowl
Exact flat pattern
Valley and ridge
Exact flat pattern
Window sill — bottom flashing
Exact flat pattern
Nozzle with tab collar on a flat wall
Exact flat pattern
Roof surface covering
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.