Free Calculators for Indian E-commerce
Tools every online seller in India should bookmark — GST, shipping, COD, commission, pricing, margin, invoicing, import duty & EMI. Built for accuracy, free forever, embed-friendly. No signup, no ads.
★★★★★ Trusted by Indian businesses since 2024
COD Charges Calculator
Compare COD fees across Shiprocket, Delhivery, DTDC, Ekart, Amazon.
Open calculator →EMI Calculator
Monthly EMI, total interest & payable for any amount and tenure.
Open calculator →GST Calculator
Add or extract GST instantly. Supports all 5 slabs (0/5/12/18/28%).
Open calculator →GST Invoice Generator
Create a GST-compliant tax invoice — auto CGST/SGST/IGST split. Download or print.
Open calculator →Import Duty Calculator
Customs duty + surcharge + IGST on imports. Know your landed cost.
Open calculator →Marketplace Commission Calculator
See what Amazon, Flipkart, and Meesho take per category.
Open calculator →Product Pricing Calculator
Set a target margin → get the right selling price (incl. GST).
Open calculator →Profit Margin Calculator
Find your gross margin, markup, and profit per order.
Open calculator →Shipping Cost Calculator
Estimate courier rates by zone, weight, and service mode.
Open calculator →Looking for a complete e-commerce platform?
FlexiCommerce gives you a website + customer app (iOS & Android) + delivery app + admin panel for ₹999/month. 0% commission, India-first (GST, UPI, Shiprocket built in). Seller app and multi-vendor come with Business at ₹1,999/month.