# Solenoid Magnetic Field Calc — Long Solenoid Magnetic Field

> Long Solenoid Magnetic Field (iPhone/iPad app by Tan Chia Ling.)

- Source: https://appshunter.io/ios/app/solenoid-magnetic-field-calc/id1423507970 (this page in markdown: same URL + `.md`)
- Developer: [Tan Chia Ling](https://appshunter.io/developer/321121189)
- Category: Utilities, Productivity
- Price: $2.99
- Age rating: 4+
- Requires: iOS 13 · 2 MB
- Languages: American English
- Released: 2018-08-18
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/solenoid-magnetic-field-calc/id1423507970/reviews.md

## What is Solenoid Magnetic Field Calc?

Solenoid Magnetic Field Calculator is a physics/math calculator designed to find the magnetic field inside a long solenoid, current flow, solenoid length, or number of turns quickly and easily.

Features:
- Instant calculations.
- Results can be copied to other apps.
- Formulas are included as references.
- Supports up to 16 decimal places.
- Supports various units for each input.
- Works seamlessly on both iPhone and iPad.
- Lightweight, compact app optimized for everyday use.
- Ad-free and built with privacy in mind.

A solenoid is a tightly wound helical coil of wire whose diameter is small compared to its length. The magnetic field generated in the center, or core, of a current-carrying solenoid is essentially uniform and is directed along the axis of the solenoid.

A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. Solenoids can convert electric current to mechanical action, making them very commonly used as switches. The magnetic field within a solenoid depends on the current and the density of turns.

Magnetic field inside a long solenoid equation:
B = µ₀ * N * I / L

Where:
B - Magnetic field
N - Number of turns in the solenoid
I - Electric current
L - Length of the solenoid
µ₀ - 1.25664 * 10^-6 T*m/A is the vacuum permeability

Thank you for your support. Please visit nitrio.com for more apps for your iOS devices.


## Version history (last 4 releases)

### 1.3 — 2026-02-23

- Updated for the newest devices.
- Minor bugs fixed.

### 1.2 — 2024-05-21

- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.

### 1.1 — 2021-03-03

- Update for Newest Devices
- Bug Fixed

### 1.0 — 2018-08-17

No release notes.

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## More apps by Tan Chia Ling

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All apps by Tan Chia Ling: https://appshunter.io/developer/321121189

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*