Best String Tension Calculator Apps

SweetSpot: Racket Tension

Badminton String Meter

Free

This app analyzes your badminton racket's string tension using advanced audio frequency analysis. It provides instant measurements, real-time visualization, and detailed reports to help players and coaches optimize performance and control.

Belt Length Calculator

by Imran Pinjara

$1.99

Calculate the necessary length for drive system belts with this utility. Supports both open and cross belt arrangements, requiring only pulley diameters and center length for accurate results.

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.

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.

LEO Rigging Calculator

Rigging Calculator

Free

This app provides quick solutions for everyday rigging calculations, assisting engineers and safety personnel in site surveys and rigging plan designs. It helps verify calculations, determine clearances, and analyze load distribution for safe lifting operations. Results can be exported to PDF for easy sharing.

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.

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.

NEWAVE Calculator – Gerster

by Gustav Gerster GmbH & Co. KG

Free

Calculate fabric amounts for wave pleat curtains. Input curtain width, glider distance, fullness, and seam allowance. Supports pattern repeat calculations.