Electrical work cost estimate in 1 minute: Excel calculator

Electrical work cost estimate in 1 minute: Excel calculator

What it is

A ready-to-use Excel calculator for calculating electrical loads. Simply enter your list of appliances, and the spreadsheet automatically calculates total power and current, then selects the appropriate circuit breaker rating and cable cross-section.

Problems it solves

Tired of manual calculations and the risk of errors? This calculator eliminates arithmetic mistakes—the formulas are pre-verified and configured.

Don´t have the PUE (Electrical Installation Rules) tables memorized? Cable cross-section and breaker ratings are selected automatically based on the calculated current.

Worried the installation crew is overestimating the load? Enter the appliances yourself to see the real figures and verify their calculations.

Wasting time recalculating when the list changes? Change the power rating or add an appliance, and everything updates instantly.

Unsure which cable to buy? The calculator provides the correct copper cable cross-section and the recommended circuit breaker.

What’s inside

A spreadsheet for 20 appliances (5 pre-filled examples, 15 blank slots for your needs).

Total power calculation (Watts and kW).

Current calculation.

Circuit breaker selection from standard ratings (16, 25, 32, 40, 63 A).

Copper cable cross-section selection (1.5 / 2.5 / 4 / 6 / 10 mm²).

Formulas are protected against accidental changes—you only enter your specific data.

Who it’s for

Electricians—for quick on-site calculations.

Handymen and DIY enthusiasts—for repairs and wiring projects.

Homeowners doing renovations who want to verify their contractor´s work.

Format

Excel file (.xlsx) in a compressed archive. Compatible with Microsoft Excel and Google Sheets. What you need to do

Simply open the file and enter the names of the appliances, their power ratings, and the quantities. The calculator will do the rest.