Calculate material needs for patios using seven estimators: concrete slab, pavers, paver base, polymeric sand, sand & gravel, area, and volume. Input dimensions in inches, feet, yards, centimeters, or meters.
ContractorCalculator helps users perform on-the-go calculations for square footage, measurement conversions, and fraction math. It supports trade-specific tasks like amps to watts and wire size.
Calculate costs and percentages for building projects. Estimate quantities needed for walls, floors, and roofs. Convert measurements between units. Track project budgets and adjust estimates in real time. Export calculations to PDF or email.
Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.
Perform general calculations including addition, subtraction, multiplication, division, and square roots. Use memory functions for storage and retrieval. Apply thousands separators and handle numbers up to 60 digits.
Manage electrical jobs with time tracking and job invitations. Access NEC calculators for conduit fill, voltage drop, and motor calculations. Use NEC tables for code-compliant installations. View common schematics and generate estimates and invoices.
Calculate fractions by adding, subtracting, dividing, and multiplying. Convert fractions to decimals. Adjust recipe quantities for different serving sizes. Review math problems quickly and accurately.