Voltage Drop Calculator
Calculate voltage drop across cables based on material, length, and current. Includes formulas and NEC-compliant tables for electrical engineering projects.
December 31, 2025
PCB Design & Manufacturing
Comprehensive PCB design and manufacturing tools to streamline your hardware development. Includes specialized calculators for power & transformers, manufacturing clearances, and general layout utilities. Ensure your PCB designs meet technical specifications with our reliable engineering calculators.
CRC Calculator Online – Free Tool
Use our free, fast, and accurate online CRC calculator to compute checksums for CRC-8, CRC-16, CRC-32, and more. Ensure data integrity and detect transmission errors instantly.
December 10, 2025
Transformer kVA Calculator
Calculate transformer kVA ratings for single-phase and three-phase systems. Includes formulas, step-by-step sizing guides, and practical application examples.
September 11, 2025
July 18, 2025
Transformer Impedance Calculator
Calculate transformer percentage impedance (%Z), ohmic impedance, and fault current. Includes typical values, formulas, and step-by-step calculation guides.
July 1, 2025
PCB Trace Width Calculator
Welcome to the PCB Trace Width Calculator! This tool helps you determine the optimal width of a copper trace for your PCB design, ensuring it can safely carry a specified current without exceeding a desired temperature rise. By inputting your trace length, we can also estimate key electrical parameters such as resistance, voltage drop, and power loss, which are critical for efficient circuit performance.
June 15, 2025
Three Phase Calculator
Calculate current (Amps), real power (kW), and apparent power (kVA) for three-phase systems. Includes power triangle visualization, formulas, and key concepts.
May 26, 2025
Battery Life Calculator
Estimate battery runtime based on capacity, consumption, and depth of discharge (DoD). Includes an interactive discharge chart and real-world factors.
April 10, 2025
PCB Prototype Cost Analyzer
Estimate PCB prototype costs instantly. Analyze how quantity, board size, layers, and surface finish impact your budget with interactive charts and expert tips.
March 23, 2025
PCB Impedance Calculator
Calculate PCB characteristic and differential impedance for microstrip and stripline. Supports edge-coupled pairs with precise formulas and visual diagrams.
March 15, 2025