B2B Trade Tools
Free calculators and lookup tools for Indian B2B buyers and suppliers. No signup required.
Indian B2B transactions involve multiple compliance layers: GST invoicing with the correct CGST/SGST or IGST split, HSN code classification for every product line, and packaging cost estimation before finalising shipment quantities. Errors at any of these steps cause invoice rejections, delayed ITC claims, and disputes with suppliers.
The tools below help buyers and suppliers on VyaparSethu — and any Indian MSME — get these calculations right the first time. Use the HSN Code Lookup before raising a purchase order, run the GST Calculator to confirm your invoice breakup, and use the Packaging Cost Estimator to price corrugated or HDPE shipments accurately before submitting a quote.
Free B2B Tools for Indian SMEs
VyaparSethu offers free tools designed to help Indian businesses buy smarter, stay tax-compliant, and source more efficiently. Use these tools before you send a requirement, negotiate a deal, or prepare a quotation. No registration required.
GST Calculator
Calculate GST-inclusive and GST-exclusive prices instantly. Supports all major tax slabs — 5%, 12%, 18%, and 28% — with CGST, SGST, and IGST breakdowns. Essential for buyers comparing quotes and suppliers preparing invoices. Updated with the latest GST rates.
HSN Code Lookup
Find the correct Harmonised System of Nomenclature code for any product. HSN codes determine the GST rate applicable to your goods and are mandatory on all B2B invoices above the prescribed threshold. Use this tool before you raise an invoice or compare supplier quotes.
Packaging Calculator
Estimate packaging requirements for bulk orders. Calculate the number of boxes, weight per carton, and total shipping volume for standard packaging configurations. Useful for suppliers preparing quotations and buyers estimating freight costs.
HSN Code Lookup
Search 70+ HSN codes by product name or code number. Includes GST rate, product category, and common examples. Covers Steel, Packaging, Chemicals, Textiles, Machinery.
B2B GST Calculator
Calculate CGST + SGST or IGST for any B2B invoice. Supports GST-inclusive and GST-exclusive modes. Quick-select by product category. Instant ITC note.
Packaging Cost Estimator
Estimate total corrugated box or HDPE bag costs for a shipment. Input dimensions, quantity, and material grade — get per-unit and bulk order cost with GST.
Coming Soon
GSTIN Verification
Verify any supplier GSTIN — active status, filing history, business name, and state.
Freight Cost Estimator
Estimate road freight cost between any two Indian cities by weight and volume.
HS Code to Export Duty
Look up import duty and export policy for any HS code under India's Foreign Trade Policy.
LC (Letter of Credit) Guide
Interactive LC type selector and documentary requirements checklist for B2B trade finance.
How to Use These Tools Effectively
Before Posting a Requirement
Use the HSN Code Lookup to identify the correct product classification code before you write your Requirement. Suppliers will quote more accurately when your Requirement includes the HSN code — it removes ambiguity about which grade or specification of a product you need, and ensures all quotes have the same GST rate applied so you can compare them on a like-for-like basis.
Before Accepting a Supplier Quote
Use the GST Calculator to verify the tax breakup on any quote you receive. Enter the base price and GST rate from the supplier's quote to instantly see the CGST + SGST (intra-state) or IGST (inter-state) split, the total invoice value, and your ITC (Input Tax Credit) eligibility. This prevents surprises where the quoted price looks low but the GST-inclusive price is higher than a competitor's quote.
Before Preparing a Shipment Quote
Suppliers preparing quotations for bulk orders should use the Packaging Calculator to estimate total packaging requirements. Enter the product dimensions, individual unit weight, and total order quantity to get the number of cartons needed, gross weight per carton, and total shipment volume. This allows accurate freight cost estimation and prevents under-packaging (which causes damage claims) or over-packaging (which wastes material cost).
Who Should Use These Tools
These tools are designed for Indian MSMEs, procurement managers, and sourcing teams who regularly deal with B2B transactions, GST invoicing, and bulk shipments. They are particularly useful for construction companies sourcing materials, manufacturing firms procuring raw materials, traders preparing export or domestic supply quotations, and small businesses verifying whether a supplier's GST invoice is correctly formatted before claiming ITC.
Tools — Frequently Asked Questions
Are the VyaparSethu tools free to use?
Yes, all three tools — GST Calculator, HSN Code Lookup, and Packaging Calculator — are completely free to use. No account or registration is required. They are available to any Indian business, whether or not you use VyaparSethu for sourcing.
How accurate is the GST Calculator?
The GST Calculator uses the current official GST rates as notified by the GST Council. It correctly calculates CGST + SGST for intra-state supply and IGST for inter-state supply across all standard slabs (5%, 12%, 18%, 28%) and special rates. For composite or exempt goods, always verify against the product's specific HSN code on the CBIC portal.
What if I cannot find my product in the HSN Lookup?
Try searching by a broader product description or the general material type. For example, if “3-ply corrugated cardboard sheet” does not return a result, try “cardboard” or “paper packaging”. For specialised products or new product classifications, the authoritative source is the CBIC's GST rate schedule on cbic.gov.in, which covers all 8-digit HSN codes.
Does the Packaging Calculator account for GST on packaging materials?
Yes. The Packaging Calculator includes a GST component in its cost output, using the standard GST rate applicable to corrugated boxes (18% GST under HSN 4819) and HDPE bags (18% GST under HSN 3923). The output shows both the base cost and the GST-inclusive total, making it directly usable for quotation preparation.
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