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Battery Calculator

Battery Calculator

Battery Life, Capacity & Size

4 ratings
6 reviews
#179 in paid Utilities
🔧 Utilities
📊 Productivity
$2.99

Details

  • Released
  • Updated
  • April 26, 2017
  • December 22, 2025

Features

Developer

Nitrio
✨Promote your app ✨
Battery Calculator screenshot #1 for iPhone
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Battery Calculator screenshot #10 for iPhone
iphone
ipad
📊no. 179
Charts↘︎
⭐6
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Calculate estimated battery run time based on capacity and device consumption. Determine battery capacity from stored energy and voltage, and calculate required battery ratings based on load and duration.

✓Battery life calculator
✓Battery capacity calculator
✓Battery size calculator
✓Estimate run time
✓Calculate battery capacity in Wh
✓Calculate required battery rating in Ah
Show original description

What's New in Battery Calculator

1.3

December 22, 2025

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

Charts

Top Paid

📊 179

Utilities

The app has maintained its position at 179 recently.

Last updated on July 27, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Battery life calculator

Do not purchase this tried to put in device consumption and it crashes and throws me completely out of the program and there is no section to get my money back !
roach 75roach 75

Crashes

Just spent money on an app that crashes as soon as you type figures into it. Not impressed.
Davo & JackoDavo & Jacko

Terrible - Should he pulled form App Store

DO NOT BUY. Crashes, does not work.
L'doubleL'double

Terrible keeps crashing

Keeps crashing when trying to input numbers. Terrible and worthless!
LuigisivLuigisiv

Do not buy

Fake program. Does not work...
A Different Jon ZuckerA Different Jon Zucker

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FAQ

What is Battery Calculator?

Battery Calculator is a utility app designed to help users calculate battery life, capacity, and size. It uses various electrical formulas to provide estimations based on user-inputted values.

How does Battery Calculator estimate battery life?

It estimates battery life by using the battery's capacity (in Ah or mAh) and the device's average current draw (in A or mA), along with battery efficiency.

Can Battery Calculator determine battery capacity?

Yes, it can calculate the energy stored in a battery (in Wh or kWh) by using the battery's voltage and its capacity (in Ah or mAh).

What information is needed to calculate battery size?

To calculate the required battery rating in ampere-hours, you need to provide the load in watts, the duration in hours, and the desired remaining charge percentage.

What devices is Battery Calculator compatible with?

Battery Calculator is available for iPhone, iPad, and iPod devices, supporting iOS.

What is the price of Battery Calculator?

Battery Calculator is a paid application, priced at $2.99.

How often is Battery Calculator updated?

The app was last updated on December 22, 2025, with version 1.3. This indicates a recent update, suggesting ongoing support.

What is the age rating for Battery Calculator?

Battery Calculator has an age rating of 4+, making it suitable for a wide range of users.