Time and Materials

Formula and source

Total billable = labor_hours × hourly_rate × (1 + OT_factor) + materials_cost × (1 + markup_pct) + travel.

Engineering-practice billing convention.

Audience

This tile is built for electricians and the adjacent professions in the Cross-Trade Utilities group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.

Related tools

• Material Cost Estimator
• Markup and Margin
• Overtime Hours
• Per-Diem (GSA)

Posture

Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.