Electrical tools
Cables, loads and volt-drop — done right.
Electrical Quote Builder
Price materials and labor into a professional PDF quote.
Open toolElectrical Invoice Builder
Invoice a job — or turn a quote into an invoice.
Open toolElectrical Purchase Order
Order materials from suppliers as a branded PDF purchase order.
Open toolElectrical Job Card
Log on-site work, parts and hours — sign-off ready.
Open toolVoltage Drop Calculator
Volt-drop over a cable run at a given current.
Open toolCable Size & Wire Gauge Calculator
Minimum cable size and wire gauge for a load and run length.
Open toolOhm's Law Calculator
Volts, amps, ohms and watts from any two.
Open toolkW to Amps Calculator
Convert power to current — DC, single or three phase.
Open toolBreaker Size Calculator
The standard breaker rating for a load.
Open toolGenerator Size Calculator
kVA needed to run — and start — your appliances.
Open toolkVA Calculator
Convert between kVA, kW and amps at any power factor.
Open toolAppliance Running Cost Calculator
What your appliances cost to run per day and month.
Open toolLighting Calculator (Lumens)
Lumens and number of fittings for a room.
Open toolConduit Fill Calculator
Smallest conduit for your wires — NEC fill.
Open toolExequtechOS
Do the whole job in one place
A calculation is just the start. ExequtechOS takes it from estimate to quote, job card, invoice and paid — for your whole team.
Get started with ExequtechOS- Turn these numbers into a client-ready quote
- Job cards, invoicing & inventory in one place
- Works offline in the field, syncs when you’re back