Electrical Formulator

Electrical Formulator: Your Complete Electrical Calculation Tool

Solve virtually any electrical design or engineering challenge with this powerful and intuitive electrical formulator. Packed with hundreds of conversion and calculation tools, it’s the most versatile utility in your toolkit. Save, print, or email your results. Easily access your most-used and recently used formulas. Every calculation is automatically saved for future reference.

Key Features: • Instant access to over 100 professional-grade electrical formulas • Save and organize your results for later reference • Share results via email or print • Highlights your most-used and recent formulas • Designed for engineers, electricians, and energy professionals

Formula Categories:

Batteries • Starting motor amperage • Number of cells required • Estimated operating time

Cost Calculations • Appliance and lighting energy usage • Estimated usage hours for new bulbs • Insulation payback period

BTU Conversions • BTU to joules, horsepower-hr, watt-hr, calories, foot-pounds, and more

Generator Calculations • DC generator output • Generator amperage and efficiency

Impedance & Reactance • Resistance & reactance combinations • Inductive and capacitive reactance • Total impedance and parallel circuits

Kilowatts & Joules • Convert kilowatts to BTU/hr, joules/sec, lumens, horsepower, megajoules/hr, and more

Motors • Single- and three-phase motor calculations • Locked rotor current • Motor kVA (including multiple input scenarios) • Motor speed analysis

Ohm’s Law • Calculate for power, voltage, resistance, or current

Transformers • Primary and secondary amperage • Full-load transformer sizing (208V, 240V, 480V for single and three-phase) • Impedance and amperage capacity calculations

Voltage Drop • Copper and aluminum wire voltage drop (1-phase and 3-phase) • US/Imperial and metric units supported

Wiring & Conduits • Wire size and resistance (copper and aluminum) • Wire length calculations • Conduit sizing

Whether you’re working in the field, the lab, or the classroom, this electrical formulator helps you work faster, smarter, and with confidence.

Users are able to calculate twelve formulas for FREE. Purchase a subscription to calculate additional formulas. All subscriptions come with a 1-WEEK FREE TRIAL and SUPPORT Family Sharing.