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Drop a working savings calculator onto your landing page in seconds. CalcEngine Free comes pre-configured with a complete savings scenario so you can see results immediately. Customize the inputs, tweak the formula, match your brand colors, and publish.

Built for SaaS landing pages, agency sites, and service businesses that want to show prospects what they could save. Every slider updates the result instantly with smooth animated transitions. Visitors can also click any slider value to type in an exact number.

Full control over typography, colors, spacing, and number formatting. Supports multiple locales (US, UK, German, French, Japanese, or custom) and four number formats: currency, plain numbers, percentages, and compact notation (1.2K, 3.4M). Respects reduced motion preferences for accessibility.

No external services. No monthly fees. No API keys. Everything runs client-side.

How to customize your calculator:

Each input has a Variable Name (like monthlySpend or teamSize). These names are what you use in the formula field. The formula is simple math using those names.

Examples:

monthlySpend * 12 (annual cost)
teamSize * hourlyRate * 2080 (annual labor cost)
monthlySpend * (savingsPercent / 100) * years * 12 (projected savings over time)
revenue > 1000000 ? revenue * 0.05 : revenue * 0.08 (conditional rate)

Available math helpers you can use in formulas: round(), ceil(), floor(), min(), max(), abs()

Quick setup steps:

Drag the component onto your page
In the property panel, open Calculator Inputs
For each input, set a Variable Name, Label, Min, Max, and Default Value
Add a Unit Prefix (like $) or Unit Suffix (like % or hrs) if needed
Write your formula using the variable names
Pick your number format (currency, decimal, percent, or compact)
Set your currency code if using currency format (USD, EUR, GBP, etc.)
Adjust colors to match your brand

Variable names should be letters only with no spaces. Use camelCase for multi-word names (like monthlySpend or hoursPerWeek). If a formula has an error, the result will show $0 instead of breaking.

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