Filament Calculator Laravel Package

Product Decisions This Supports

• Enhancing User Experience (UX) for Data Entry:

  • Reduces manual calculations, minimizing errors in financial, scientific, or metric-based inputs (e.g., pricing, measurements, or inventory).
  • Aligns with a roadmap item to streamline form interactions in the Filament admin panel, improving developer and end-user efficiency.

• Build vs. Buy Decision:

  • Buy: Saves development time (~2–4 weeks for a custom calculator modal) and leverages a battle-tested, MIT-licensed solution. Ideal for teams with tight deadlines or limited frontend resources.
  • Build: Only justified if the calculator requires highly specialized logic (e.g., domain-specific formulas) or deep integration with existing systems (e.g., real-time API calls).

• Use Cases:

  • Financial Systems: Dynamic tax/fee calculations, currency conversions, or profit margin tools.
  • E-commerce: Bulk pricing adjustments, discount tiers, or shipping cost estimators.
  • Logistics/Inventory: Unit conversions (e.g., kg to lbs), volume calculations, or batch processing.
  • Analytics Dashboards: Ad-hoc calculations for KPIs or custom metrics in Filament forms.

• Roadmap Prioritization:

  • High-value for MVP expansions where UX polish is critical but custom development isn’t.
  • Can be phased in incrementally (e.g., start with core fields like price or quantity, then expand).

When to Consider This Package

• Adopt When:

  • Your Filament admin panel includes repetitive calculations tied to TextInput fields (e.g., percentages, unit conversions, or arithmetic operations).
  • You need a quick, low-code solution to avoid frontend/JavaScript development overhead.
  • The calculator logic is generic (e.g., basic arithmetic, predefined formulas) and doesn’t require custom UI/UX.
  • Your team lacks dedicated frontend resources or has a backlog of higher-priority features.

• Look Elsewhere When:

  • You require complex, interactive calculators (e.g., multi-step workflows, real-time API dependencies, or visual graphs).
  • The calculations need deep integration with external systems (e.g., triggering actions on calculation results).
  • Your team has specific design/system requirements that conflict with the package’s default styling (e.g., brand-compliant UI).
  • You’re using Filament v2+ and need to ensure compatibility (verify with the maintainer; last release is 2026-04-01).
  • The package’s MIT license conflicts with your organization’s open-source policy (unlikely, but worth confirming).

How to Pitch It (Stakeholders)

For Executives:

"This package lets our Filament admin panel users perform calculations directly in forms—like pricing adjustments or unit conversions—without manual entry or errors. It’s a 2-week drop-in solution that could save our team [X] hours/year in development and reduce data errors by [Y]%. For example, e-commerce teams could instantly calculate discounts or shipping costs, while finance could automate tax computations. The MIT license and low maintenance cost make it a no-brainer for quick wins."

Ask:

• "Would you prioritize reducing manual calculation errors in [specific workflow]?"
• "How does this compare to our current backlog for custom calculator tools?"

For Engineering/Dev Teams:

*"The ariefng/filament-calculator package adds a modal-based calculator to Filament TextInput fields with minimal setup. Here’s why it’s worth adopting:

• Pros:
  • Plugs into Filament seamlessly; no need to rebuild calculator UX from scratch.
  • Supports basic arithmetic, percentages, and custom formulas (configurable via PHP).
  • MIT license + active maintenance (last release: 2026-04-01).
  • Reduces frontend JS complexity for teams focused on backend logic.
• Cons:
  • Limited to TextInput fields (not rich text or complex inputs).
  • Default styling may need minor CSS overrides for brand consistency.
• Implementation:

  use Ariefng\FilamentCalculator\Actions\CalculatorAction;
  $this->actions([
      CalculatorAction::make(),
  ]);
  

  We can pilot this for [high-impact field, e.g., product pricing] and expand based on feedback. Alternatives like custom Vue/React components would take 4x longer to develop."

Ask:

• "Are there any Filament fields where manual calculations are a pain point?"
• "Should we pair this with a feature flag for gradual rollout?"