# Lighting Calculation — Lighting Calculator

> Lighting Calculator (iPhone/iPad app by Sunnykumar Mavani.)

- Source: https://appshunter.io/ios/app/lighting-calculation/id1297226258 (this page in markdown: same URL + `.md`)
- Developer: [Sunnykumar Mavani](https://appshunter.io/developer/1281858514)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 10.0 · 3 MB
- Languages: American English
- Released: 2017-10-18
- Data updated: 2026-01-19
- User reviews in markdown: https://appshunter.io/ios/app/lighting-calculation/id1297226258/reviews.md

## What is Lighting Calculation?

Lighting Calculator

Calculate the required number of Light fittings, for a specific Room in seconds.

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Measurement of light or photometry is generally concerned with the amount of useful light falling on a surface and the amount of light emerging from a lamp or other source, along with the colors that can be rendered by this light. The human eye responds differently to light from different parts of the visible spectrum, therefore photometric measurements must take the luminosity function into account when measuring the amount of useful light. The basic SI unit of measurement is the candela (cd), which describes the luminous intensity, all other photometric units are derived from the candela. Luminance for instance is a measure of the density of luminous intensity in a given direction. It describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m2). The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m2. The amount of useful light emitted from a source or the luminous flux is measured in lumen (lm).


## Version history (last 5 releases)

### 1.5 — 2021-09-04

Bug Fixes, Library Update & Performance Improvements.

### 1.4 — 2020-12-31

Bug Fixes, Library Update & Performance Improvements.

### 1.3 — 2020-04-06

Bug Fixes, Library Update & Performance Improvements.

### 1.2 — 2019-01-04

Bug Fixes & Performance Improvements.

### 1.1 — 2017-11-29

Bug Fix
Improvement 
Support iOS 11

## More apps by Sunnykumar Mavani

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- [Civil Engineering Calc](https://appshunter.io/ios/app/civil-engineering-calc/id1288102367)
- [Digital Logic And Calculator](https://appshunter.io/ios/app/digital-logic-and-calculator/id1288119177)

All apps by Sunnykumar Mavani: https://appshunter.io/developer/1281858514

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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 2026-01-19.*