Electrician Calculator Pro is a mobile app with a broad set of electrical calculations including wire sizing, conduit fill, voltage drop, and load calculations, targeting field electricians on iOS and Android.
| Feature | Electrician Calculator Pro | SparkShift |
|---|---|---|
| Price | Varies — see their site | Free |
| Platform | iOS + Android app | Browser + iOS + Android |
| NEC editions | Varies — see their site | 2017, 2020, 2023, 2026 |
| 3D conduit bending | Varies — see their site | Yes — live parametric 3D |
| EV charger / solar PV | Varies — see their site | Yes |
| No sign-up required | Varies — see their site | Yes |
The calculators most relevant to what Electrician Calculator Pro users typically need. All free, no sign-up.
Yes. Open sparkshift.app/calculators in any browser. No download or account required. You can run calculations immediately.
SparkShift uses official NEC tables and formulas for all calculations. Wire sizing is based on NEC Table 310.16, conduit fill on NEC Chapter 9, and motor FLC on NEC Tables 430.247–430.250. Results should match any correctly implemented NEC calculator.
SparkShift covers wire sizing, voltage drop, conduit fill, conduit bending, box fill, dwelling load, commercial load, motor circuits, arc flash, EV charger, solar PV, battery storage, and more — 40+ calculators in total.
Yes. SparkShift Pro subscribers can export calculation results as PDF reports for project documentation.
40+ NEC calculators in your browser. Wire sizing, conduit fill, voltage drop, dwelling loads, conduit bending with live 3D, arc flash, EV chargers, solar PV, and more.