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Gear Ratio Speed Calc

Shanghai Sheyuan Network Technology Co., Ltd.
Multi-Stage Drive Train Tool
Open in App Store ↗
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142 of 142 storefronts
Content in en-US
Age Rating
4+
Years
Developer
Shanghai Sheyuan Network Technology Co., Ltd.
Language
ES
Size
1.0
MB

Information

Apple ID6761039376
Bundle IDcom.sy.GearRatioSpeedCalc
SellerSeller
Min iOS17.0
Min macOS14.0
Device familiesiphone, ipad
Released2026-03-25
Copyright© 2026 Sheyuan Inc.
Privacy policyLink ↗

Preview 2 platforms

iPhone 3 images

iPhone screenshot
iPhone screenshot
iPhone screenshot

iPad 3 images

iPad screenshot
iPad screenshot
iPad screenshot

What’s New Version 1.0.2

Added a More Pro Tools section to discover related field calculators.

Description

Designing a gear train and need to know the final output RPM and torque multiplier for single, dual, or triple stage setups? Enter driver and driven teeth counts, set your input RPM, and get instant results. Includes 8 common gear presets for fast selection on the shop floor. FEATURES: - Single, dual, and triple stage gear ratio calculations - Calculate overall gear ratio, output RPM, and torque multiplier - 8 common gear presets for quick selection - Custom driver and driven teeth input for any gear combination - Supports any input RPM value - Clean, dark-themed interface for shop and field use FORMULAS: - Gear Ratio = Driven Teeth / Driver Teeth - Output RPM = Input RPM / Overall Gear Ratio - Torque Multiplier = Overall Gear Ratio - Multi-stage: Overall Ratio = Stage 1 x Stage 2 x Stage 3 PRESETS INCLUDED: 12/48 (4:1), 15/45 (3:1), 18/36 (2:1), 20/40 (2:1), 16/64 (4:1), 24/72 (3:1), 20/60 (3:1), 14/56 (4:1) Perfect for designing gear trains, verifying speed reductions, and calculating torque multiplication in mechanical power transmission systems.

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 3 versions

Build 887535562v1.0.22026-06-28 16:57:09
Added a More Pro Tools section to discover related field calculators.
Build 884457457v1.0.12026-04-15 22:53:19
Bug fixes and performance improvements.
Build 883691170v1.02026-03-25 09:30:35
App price

Price history by region

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Availability 142 of 142 storefronts

RegionLanguagePriceRatingsAvgVersion
AF en-GBUSD 1.990—1.0.2
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SK en-GBEUR 1.990—1.0.2
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SV es-MXUSD 1.990—1.0.2
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VU en-GBUSD 1.990—1.0.2
YE en-GBUSD 1.990—1.0.2
ZM en-GBUSD 1.990—1.0.2
ZW en-GBUSD 1.990—1.0.2

Change log 7 changes · DO

✎
releaseNotes updated
Added a More Pro Tools section to discover related field calculators.
✎
description updated
Designing a gear train and need to know the final output RPM and torque multiplier for single, dual, or triple stage setups? Enter driver and driven teeth count
✎
subtitle updated
Multi-Stage Drive Train Tool
✎
name updated
Gear Ratio Speed Calc
◆
Version 1.0.2 released
Added a More Pro Tools section to discover related field calculators.
◆
Version 1.0.1 released
Bug fixes and performance improvements.
◆
Version 1.0 released
expanded screenshot