7 calculators in this category
- Wire Size & Ampacity CalculatorNEC 2023 (NFPA 70), Table 310.16 with 110.14(C), 240.4 and 310.15Enter the load, the conductor material and the conditions the conductor will live in, and this calculator returns the smallest…
- Voltage Drop CalculatorNEC 2023 (NFPA 70) informational notes to 210.19 and 215.2Enter the load current, the one-way length of the run, the system voltage and the conductor you plan to use, and this…
- Conductor Ampacity Derating CalculatorNEC 2023 (NFPA 70) Article 310 and 110.14(C)Start with the table ampacity of your conductor, then apply the two derating factors the NEC requires: an ambient temperature…
- Conduit Fill CalculatorNEC 2023 (NFPA 70), Chapter 9 Tables 1, 4 and 5Enter the conduit you plan to use and the conductors you plan to pull, and this calculator returns the total conductor area…
- Box Fill Calculator (NEC 314.16)NEC 2023 (NFPA 70) 314.16Enter what is going into the box — conductor sizes and counts, devices on yokes, internal clamps, support fittings and…
- Equipment Grounding Conductor Size CalculatorNEC 2023 (NFPA 70) 250.122Give this calculator the rating of the overcurrent device protecting the circuit and it returns the minimum equipment grounding…
- AWG to mm² Wire Size Conversion CalculatorASTM B258 AWG definitionPick an AWG size and this calculator gives its exact diameter in millimetres and inches, its cross-sectional area in mm², its…
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