ERP Calculators & Comparison Tools
7 free tools to help you estimate ERP implementation costs, compare vendors, and decide whether you need MES, ERP, or both.
- Free ERP Tools
- 7 tools
- Cost, vendors & MES vs ERP
- Cost EstimationERP Implementation · Manufacturing ERP · Construction ERP
- Vendor ComparisonERP Comparison Tool
- MES vs ERP DecisionMES vs ERP Selector
- GST & InvoicingGST Calculator · GST Invoice Generator
All ERP Tools
ERP Implementation Calculator
Estimate total ERP implementation costs including licensing, customisation, data migration, training, and 5-year TCO across 11 vendors.
Use Tool CalculatorManufacturing ERP Calculator
Calculate ERP costs tailored to manufacturing with BOM depth, MES integration, plant count, and module-level costing for discrete and process industries.
Use Tool CalculatorConstruction ERP Calculator
Estimate ERP costs for construction firms including job costing, subcontractor management, equipment tracking, and retainage handling.
Use Tool ComparisonERP Comparison Tool
Compare Odoo, ERPNext, SAP Business One, NetSuite, and Dynamics 365 BC side by side based on your company size, industry, and requirements.
Use Tool SelectorMES vs ERP Selector
Determine whether your manufacturing operation needs MES first, ERP first, or both — with reasoning based on your shop-floor maturity and pain points.
Use Tool CalculatorGST Calculator
Add or remove GST on any amount at current or pre-22 September 2025 rates, with the CGST, SGST and IGST split.
Use Tool GeneratorFree GST Invoice Generator
Build a GST tax invoice with the Rule 46 fields, CGST and SGST or IGST, and amount in words, then print or save it as a PDF.
Use ToolHow to Choose the Right ERP Tool
Cost Estimation
Use the implementation or industry-specific calculators to estimate licence, implementation, customisation, and 5-year TCO before engaging vendors.
- ERP Implementation
- Manufacturing ERP
- Construction ERP
Vendor Comparison
Compare open-source and commercial ERP platforms side by side based on your company size, budget, and must-have modules.
- ERP Comparison Tool
MES vs ERP Decision
Not sure whether you need shop-floor execution or enterprise planning first? The selector tool recommends the right starting point based on your symptoms.
- MES vs ERP Selector
GST & Invoicing
Work out GST on a price, split it into CGST and SGST or IGST, and turn the numbers into a printable GST tax invoice.
- GST Calculator
- GST Invoice Generator
Need Expert ERP Implementation?
Perimattic builds and customises ERP systems for manufacturing and construction. From ERPNext and Odoo to custom solutions, our team handles implementation end to end. Perimattic is also building ERPStack, a GST-ready ERP for Indian small and mid-sized businesses, now in early access.
Need More Than a Calculator?
Talk to our ERP consultants about a detailed implementation roadmap with fixed-price quotes and timelines.
Or email sales@perimattic.com