Calculation & Pricing Overview

Written By Floris de Vries

Last updated 3 days ago

The Calculation & Pricing step defines how the final product price is calculated. In this step, all inputs from Step 1 (Fields) are combined into a single formula that determines the dynamic price shown to the customer.

This allows you to create flexible pricing models based on measurements, selected options, quantities, or custom logic.

How the calculation works

The calculator follows this flow:

  1. The customer fills in fields (Step 1)

  2. Each field provides a numeric value

  3. These values are combined in a formula

  4. The formula returns a final calculated price

The result of the formula is applied dynamically to the product price.


When to use a custom formula

Use a custom formula when:

  • Pricing depends on measurements or quantities

  • Multiple options affect the final price

  • You need full control over pricing logic

  • You want to apply rounding or conditions

Custom formulas give you complete flexibility over how prices are calculated.


What the calculation can include

A formula can reference:

  • Values from form fields (number inputs, dropdowns, checkboxes, etc.)

  • The product price or variant price

  • Helper functions such as rounding

  • Conditional logic (premium feature)

All values are evaluated in real time as the customer interacts with the calculator.


Preview vs live pricing

The calculation step includes a price preview for testing purposes.
This preview helps you validate your formula, but the final price displayed on the live store depends on your Shopify theme and pricing setup.


๐Ÿ’ก Tip:
Keep pricing logic as simple as possible and expand gradually. Complex pricing is easier to maintain when built step by step.