FieldVolt Electrical
Electrical Field Calculator
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
FieldVolt Pro is live. Ask code questions, get journeyman-level answers. 5 free sessions to start.
Built by a licensed electrician for work in the field.
PIPE BENDING
Offsets, 3-bend saddles, 4-bend saddles, rolled offsets, back-to-back 90s, and parallel offsets. Mark placement calculated from the working end. Shrink, gain, spacing — all of it.
CONDUIT FILL
NEC Table 1 calculations for mixed wire fills. Add conductors, get fill percentage.
AMPACITY
Wire sizing and derating for ambient temperature, number of current-carrying conductors, and conduit type.
VOLTAGE DROP
Feeder and branch circuit voltage drop for single-phase and three-phase systems.
BOX FILL
NEC 314.16 calculations for device, conductor, clamp, and support fitting fill.
FIELDVOLT PRO
Ask electrical questions, get straight answers. Code interpretation, troubleshooting, load calc logic — the kind of thinking you'd get from someone who's been in the trade for 30 years.
5 free sessions included. Pro subscription available at $4.99/month or $50/year.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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FieldVolt Pro
Ask any electrical question. Get a straight answer.
Code sections, derating logic, troubleshooting, load calculations — ask it like you'd ask the senior guy on the job. No guessing, no runaround.
5 free sessions included with the app. Pro subscription: $4.99/month or $50/year for unlimited access.
The developer, MATTHEW DAVID KOVALIK, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- MATTHEW DAVID KOVALIK
- Size
- 69.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- FieldVolt Pro USD 4.99
- FieldVolt Pro USD 49.99
- Copyright
- © 2026 Matt Kovalik