Best Propeller Calc Apps

248+ iOS apps curated and reviewed

2.9 avg rating

15 free apps

Updated September 2026

From beginner-friendly picks to power-user tools, our propeller calc list covers 248+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Propeller Calc Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Propeller Calc	Free	3.0★ (1)	No	No	May 2026
2	XW Calc - Crosswind Calculator	$2.99	—	No	No	Jun 2026
3	Aviator Time Calc	Free	—	No	No	May 2026
4	Flight Time & FDP: Avion Calc	Free	—	No	No	Jun 2026
5	Helicopter Pitch Calculator	Free	—	No	No	May 2026
6	Flight Calculator	$4.99	—	No	No	Jul 2026
7	Fuel Calc - HCM RMC	Free	—	No	No	May 2026
8	Machining Toolkit Calc	Free	—	Yes	Yes	Jun 2026

Top Picks for Propeller Calc

Propeller Calc by Frode Rørvik

Editor's Choice

🔧 Utilities

3.0(1 ratings)

Free

This utility calculates propeller performance metrics like pitch, gear ratio, RPM, slip, and speed. Input any four values, and the app computes the fifth, helping users understand the relationship between propeller design and boat performance.

XW Calc - Crosswind Calculator by Jeff Quayle

Strong Contender

☀️ Weather

0.0(0 ratings)

$2.99

#84in Weather

XW Calc - Crosswind Calculator screenshot 1

XW Calc - Crosswind Calculator screenshot 2

XW Calc - Crosswind Calculator screenshot 3

XW Calc - Crosswind Calculator screenshot 4

Aviator Time Calc by Alexander Melnichuk

Worth Considering

🔧 Utilities

0.0(0 ratings)

Free

More Propeller Calc apps to explore

Flight Time & FDP: Avion Calc

Duty Period & Block Time Calc

Free

📊 Productivity

(0)

Helicopter Pitch Calculator

Machining Toolkit Calc

CNC Milling & Turning Calc

by ENGEL AUSTRIA GmbH

Free

This tool simplifies complex calculations for injection molders, including stroke volume, clamping force, cooling time, and screw speed. Get accurate results quickly and clearly displayed on a single page, eliminating the need for tedious manual computations.

Calculate stroke volumeDetermine clamping forceEstimate cooling time

This app provides engineers, technicians, and students with essential tools for bolted joint development. It includes converters for various units and geometrical and mechanical calculators for dimensioning and design in joining technology.

Unit converters (length, torque, pressure, force)Metric-imperial fastener conversionDrill hole size calculator

Use Same Number for Calc

Free

🔧 Utilities

(0)

PiCal - Pilot Calculator

Maritime Master - CalcDeck

Every Formula. 1 App. Offline

Free

This app provides a comprehensive suite of 88 professional maritime calculators for navigation, celestial observation, tides, stability, weather, engineering, and more. It's designed for maritime professionals and enthusiasts, offering offline functionality and citing all formulas with their official sources.

88 professional maritime calculatorsOffline functionalityNavigation calculations

Press Brake Tonnage Calculator

Free

This tool helps metal fabricators calculate the necessary tonnage for air bending parts on press brakes. It guides users through selecting material type, thickness, and die opening to determine tonnage, minimum flange length, and inside bend radius.

Air bend tonnage calculationMaterial type selectionMaterial thickness input

Calculate Flat Patterns

Free

This app calculates the flat pattern dimensions needed to create a cone from sheet material. It allows users to input desired cone dimensions and generates a drawing of the flat pattern, also calculating how many cones can be cut from a given sheet size.

Flat pattern dimension calculationCone creation from sheet metalInput desired cone dimensions

Sheet metal & pipe layout

Calcs and Useful References

$1.99

This app offers over 120 boating calculations and unit conversions, along with 120 reference pages. Easily solve a variety of boating-related problems, save and share your calculations, and quickly find the tools you need. It includes extensive reference material across various boating disciplines.

Over 120 boating calculationsExtensive unit conversions120+ reference pages

This aviation utility app offers pilots and aviation professionals essential tools for in-cockpit calculations and flight planning. It includes features for crosswind analysis, flight time compliance, time zone conversions, and temperature adjustments, all in an offline-capable interface.

Crosswind CalculatorFAR Part 117 Flight Time CalculatorTime Calculator (duty, layover, schedule)

This app simplifies time calculations for personal flight logs. It exclusively handles addition and subtraction of hours and minutes, automatically interpreting the last two digits of any input as minutes.

Time additionTime subtractionAutomatic minute interpretation

Calculator for Pilots

Free

🔧 Utilities

(0)

FAQ about Propeller Calc

What are the best propeller calc apps for iPhone?

Propeller Calc tops our propeller calc apps ranking as of September 2026, with a 3.0-star average from 1 App Store ratings, and it's free to download.

Are there free propeller calc apps for iPhone?

Yes — 15 of the top propeller calc apps we rank are free to download, including Propeller Calc and Aviator Time Calc.

Does Propeller Calc have ads or in-app purchases?

Propeller Calc has no ads and has no in-app purchases, according to its App Store listing as of September 2026.

How many propeller calc apps are on the App Store?

We track 248+ propeller calc apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What can Propeller Calc calculate?

Propeller Calc can determine pitch, gear ratio, RPM, propeller slip, and speed parameters. You can input any four of these variables, and the app will calculate the fifth for you.

What devices does Propeller Calc support?

Propeller Calc is available for both iPhone and iPad devices.