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Perform unit-aware calculations and conversions with CalcsLive

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Created by: Don Wen || dreamwell

Don Wen

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Last update 2 days ago

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What this workflow does

This template demonstrates how to perform unit-aware calculations with automatic unit conversion using the CalcsLive community node. It shows three calculation patterns:

  1. Speed calculation: Convert distance and time into velocity (km → km/h)
  2. Cylinder volume: Calculate volume from diameter and height (cm → Liters)
  3. Chained calculations: Pass output from one calculation as input to another (Volume → Mass)

Workflow Screenshot

demoworkflow.png

CalcsLive Articles Used

You can view and customize each calculation article in the CalcsLive editor:

Calculation Article ID Link
Speed Calc 3M6P9TF5P-3XA Open in Editor
Cylinder Volume 3M6P9TF5P-3XA Open in Editor
Mass Calc 3M6PBGU7S-3CA Open in Editor

Note:

  • Speed and Cylinder Volume use the same multi-purpose article (3M6P9TF5P-3XA), demonstrating how one article can serve multiple calculation needs.
  • Meanwhile, Cylinder Volume and Mass Calc are chained together as composables - the volume output feeds directly into the mass calculation.
    This pattern offers both flexibility and power for complex workflows.

Seamless Data Flow

An implicit but powerful feature: full unit freedom - input data flows seamlessly through the workflow. The "Set" nodes prepare data that CalcsLive nodes consume directly via expressions. CalcsLive then delivers outputs in your specified units, ready to feed downstream nodes. Both inputs and outputs integrate naturally with n8n's data model - no transformation needed.

Why use CalcsLive?

  • 570+ units across 67+ categories with automatic conversion
  • No formula coding - use pre-built calculation articles
  • Chain calculations - output from one calc feeds into another
  • Unit flexibility - input in any unit, get output in your preferred unit

Prerequisites

  1. Install the CalcsLive community node: @calcslive/n8n-nodes-calcslive
  2. Get an API key from calcslive.com (free tier available)
  3. Create CalcsLive API credentials in n8n

How to use

  1. Import this workflow
  2. Configure your CalcsLive API credentials
  3. Click "Execute workflow" to see the calculations run
  4. Modify the input values in the "Set" nodes to test different scenarios

Example use cases

  • E-commerce: Calculate shipping costs based on package dimensions and weight
  • Manufacturing: Convert between metric and imperial units in production workflows
  • IoT: Process sensor data with proper unit handling
  • Engineering: Chain multiple physics calculations together

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