Work it out.
Calculators
OEE (plant effectiveness)
OEE (TPM)
Yield and waste percentage
Procentregning
Capacity based on cycle time
Ratio arithmetic
MTBF and MTTR (reliability)
Vedligeholdsteknik (MTBF/MTTR, begreber jf. DS/EN 13306)
Changeover time and SMED potential
SMED (Shingo, Lean-produktion)
Inventory turnover rate and dwell time
Lagerstyring / SCM-nøgletal
Economic order quantity (EOQ)
EOQ / Wilson-formel (Harris 1913 / Wilson)
Takt time
Lean-produktion (Toyota Production System)
Line balancing (number of workstations)
Lean-produktion / linjebalancering
Process capability (Cp/Cpk)
Statistisk proceskontrol / SPC (Cp/Cpk, jf. ISO 22514-2)
Sample size for quality control
DS/ISO 2859-1 (stikprøveplaner, generelt kontrolniveau II, normal kontrol)
CO2 emissions from electricity consumption
Energinet Miljødeklaration (lokationsbaseret, 2024-tal)
Pallet storage capacity
Geometri / lagerlayout (EUR-palle, DS/EN 13698-1)
Noise exposure (LEX,8h)
Arbejdstilsynet – bekendtgørelse om beskyttelse mod støj (grænseværdi 85 dB(A))
Lifting assessment (simplified NIOSH equation)
NIOSH løfteligning (Revised NIOSH Lifting Equation, 1994)
Tank and vessel
Exact flat pattern
Funnel and hopper
Exact flat pattern
Bent bracket
Exact flat pattern
Edge-bent panel
Exact flat pattern
Rectangle-to-rectangle transition
Exact flat pattern
Truncated cone and reducer
Exact flat pattern
Nozzle in a shell
Exact flat pattern
Screw conveyor flight
Approximate flat pattern
Flat plate, flange and blank
Exact flat pattern
Tank support — saddle, legs and skirt
Exact flat pattern
Stair stringer
Exact flat pattern
Two-part valve cover
Exact flat pattern
Flange box
Exact flat pattern
Strip layout for a stamping die
Exact flat pattern
Cyclone and dust separator
Exact flat pattern
Archimedean spiral
Exact flat pattern
Elliptical cone
Approximate 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.