EdgeSpace Voltage Drop Calc

EdgeSpace Voltage Drop Calculator is a fast, offline voltage-drop calculator for electricians, contractors, and DIY. Enter system voltage, load current, one-way length, and AWG. Choose copper or aluminum and DC, single-phase, or three-phase. See drop in volts and percent, voltage at the load, ampacity check, and a recommended wire size. FEATURES • Formula: VD = (K × I × L × M) / CM • K = 12.9 copper / 21.2 aluminum • DC, 1-phase, and 3-phase • AWG 14 through 4/0 • Length in ft, m, or in • Live volts, percent, and load voltage • Ampacity warning and recommended AWG • Circuit schematic • Share, copy, and PDF export • History and favorites • Fully offline — no account, no ads, no subscription One-time purchase. Yours forever.