Best Ecpm, Ctr, Rpm Calculator Apps

Giri -The RPM Checker-

by Natural Style Co. Ltd.

Free

This tool measures the rotational speed of motors, ideal for hobbyists working with drivable model cars. It features noise removal, speed conversion, and a memo panel for recording measurements. Customizable skins add a personal touch to the user experience.

NORTON iGRIND

by Saint-Gobain

Free

This app provides essential calculators and conversion tools for grinding processes. It helps users determine starting parameters for wheel truing, optimize coolant delivery, and convert wheel speeds for safe operation.

Lathe RPM Calculator

by Slava Barouline

Free

Calculate lathe RPM based on material, designation, and tool type. Supports a wide range of materials and allows for unit changes. Simply input your work diameter to get the RPM value.

SoundTach

RPM from Engine Sound

Free

Measure engine RPM from sound without any tools. Simply point your phone at the exhaust of various engines like motorcycles, cars, or lawn mowers to get accurate, real-time readings. The app automatically filters background noise and indicates signal quality for reliable measurements.

RPM Meter for Turntable

No fuss Tachometer

Free

Easily measure the actual RPM of your turntable with this straightforward tachometer. It provides detailed readings including minimum, maximum, and average RPM, along with percentage discrepancy and wow and flutter measurements.

Calculator ⁺⁻

Basic & scientific calculator

Free

This app offers both basic and scientific calculation functions for iPhone and iPad. Users can customize its appearance, view calculation history, and perform complex equations with high accuracy. It also provides real-time calculation display and adjustable touch feedback.

Calculator!!

Improved History Feature

$0.99

$2.99 | 67% OFF

This advanced calculator offers a comprehensive history of your calculations and supports complex functions like fraction manipulation, angle conversions, and equation solving. It also includes specialized tools for engineers and a dice roller.

McCalc Fusion Calculator

HDPE/PP Pressure Calculator

Free

This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.

Rpm Meter: Calibrate Turntable

Check Speed and Error

Free

Measure the speed of any rotating object with precision using your phone's gyroscope or camera. View real-time RPM data on a live gauge and graph, save your measurements, and compare historical readings. Ideal for calibrating turntables and testing various rotating equipment.

P-T Calculator

by National Refrigerants Inc.

Free

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

Calculator: Unit Converter

by Apero Technologies Group

Free

This utility app offers a comprehensive suite of calculation tools for everyday needs. It includes basic and scientific functions, unit and currency conversions, world time, health metrics, and GPA calculation. Customize your calculator experience with practical, easy-to-use features.

Instrument Scaling Calculator

Instrument Scaling Calculator

Free

This tool simplifies instrumentation setup and scaling needs. It performs accurate conversions between process variables, 4-20mA signals, and percentages with an intuitive interface for quick calculations.

Turntable Speed

Accurate RPM & Wow Measurement

Free

Measure your vinyl turntable's speed and wow with accuracy using just your phone. Save past readings for comparison and enjoy a modern interface. Supports all common record speeds.