Best String Tension Calc Apps

Carbon Drive Belt Tension Tool

Gates Carbon Drive

Free

This app uses your phone's microphone to measure the sonic vibration frequency of a belt drive. It helps you determine if your bicycle belt tension needs adjustment by comparing the frequency to a provided chart. It also offers a calculator for bicycle belt drive parameters like speed ratio and center distance.

Belty - Belt Tuner

Sonic belt tensioner

Free

This app analyzes the frequency of a plucked timing belt to help you tune it accurately. It provides real-time feedback, historical data, and includes calculators for tension and belt length.

Hague Screw Thread Calculator

by Hague Fasteners Ltd

Free

This engineering tool provides instant access to critical dimensions for various screw thread standards, including Unified, Whitworth, and ISO Metric. It also allows for the creation and calculation of custom thread sizes and pitches, eliminating the need for physical reference books.

Southwire® Voltage Drop Calc

Southwire Calculator

Free

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

Sew Calc

by Pablo Lee

Free

This utility app simplifies fractional calculations for sewing and patternmaking. It allows users to perform basic arithmetic on fractions with denominators of halves, quarters, eighths, and sixteenths, making complex measurements easy.

CINCINNATI Load Calc

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.

Pulley Calculator

Pulley Size, RPM, Speed etc

$2.99

This engineering calculator helps determine belt length, ratio, RPM, and belt speed for pulley systems. It offers instant calculations with copyable results and includes formulas for reference.

Truss Calculator / Cálculo de cerchas

by David Brana Campos

$1.99

Easily solve 2D truss problems with this application. Select a template, input dimensions and loads, and get instant results. Supports both metric and imperial units, with English and Spanish language options.

Springulator Spring Calculator

by Newcomb Spring Corp

Free

This reference tool helps engineers, designers, and purchasing agents calculate various spring parameters. It supports compression, extension, and torsion springs, offering detailed stress charting and material selection.

Sling Load Calc

On-Site Safe Loading Companion

Free

This app provides precise calculations for sling tension, length, and angle, essential for safe and efficient lifting operations. It's designed for professionals in heavy lifting industries, offering detailed reports and supporting various rigging configurations.

Polynomial Calc

Polynomial Calculator

Free

This app functions as an algebraic calculator specifically designed for polynomial expressions. It offers basic four-function operations within the realm of polynomials.

Elevator Calculator

Feet-Inches Math for Mechanics

Free

A specialized calculator for elevator mechanics, offering precise calculations in feet, inches, and fractions. It includes tools for hoistway dimensions, rope length, clearance checks, and electrical calculations like Ohm's Law and voltage drop, all designed for field use.

String Art Designer

- design your string work -

Free

Create intricate string art designs with various string types and modes. Transform photos into unique string art pieces. Offers in-app purchases for expanded features and unlimited string options.