Free Online Billing, Retail, Pharmacy & Global Business Tools
100% free web-based calculators and utility tools designed for Indian & global chemists, retail store owners, salons, and distributors. No sign-up required.
Free Online Invoice Generator
Create professional GST invoices online. Add custom items, calculate tax, and download PDF or print instantly.
GST & Margin Calculator
Calculate 0%, 5%, 12%, 18%, and 28% GST, CGST/SGST splits, reverse GST, and profit margins.
Thermal Receipt Maker
Generate clean 2-inch and 3-inch thermal POS cash memos for retail counters and printer slips.
Product Barcode & UPI QR
Generate high-resolution printable SKU barcodes and instant UPI payment QR codes for fast checkout.
GSTIN Validator & State Code
Validate 15-digit Indian GST numbers, extract PAN, decode state codes, and verify entity types.
Medicine & Goods HSN Finder
Search medicine & retail HSN codes with official GST tax slabs (0%, 5%, 12%, 18%, 28%).
Pharma PTR & PTS Calculator
Calculate Price to Retailer (PTR) and Price to Stockist (PTS) with standard 20% / 10% margins.
Retail Discount & Margin Tool
Calculate multi-tier trade & cash discounts, customer savings, and final billing amounts.
Pediatric Dosage & Syrup Tool
Calculate pediatric drug dosage (mg/kg), volume in ml per dose, and total bottle supply duration.
Cash Denomination & Shift Tally
Count currency notes (₹500, ₹200, ₹100), digital UPI sales, and reconcile shift cash drawer.
WhatsApp Bill & Refill Formatter
Create clean WhatsApp billing notifications, medicine refill reminders, and festival offers.
Generic Medicine & Salt Finder
Compare prices between branded medicines and generic salts to offer affordable alternatives.
Markup vs Margin Converter
Convert between Cost Markup % and Selling Price Gross Margin % instantly.
Inventory Turnover & DSI Tool
Calculate stock turnover frequency and Days Sales of Inventory (DSI) on your shelves.
Reorder Point & Safety Stock
Determine exact inventory thresholds when purchase orders must be sent to distributors.
Gross vs Net Profit Margin Tool
Calculate Gross Profit, deduct Operating Expenses (rent, salaries), and find Net Margin %.
Medicine Expiry & Shelf Life
Calculate expiration month from manufacturing date (Mfg) + shelf life in months.
Customer Lifetime Value (LTV)
Calculate how much revenue a repeat customer brings to your store over their lifecycle.
Salon Stylist Commission Tool
Calculate staff commissions, deduct product consumption costs, and split service revenue.
Early Payment Discount (2/10)
Calculate cash saved by paying distributors early and annualized interest return (APR).
Retail Break-Even Sales Tool
Calculate minimum monthly sales revenue required to cover fixed overheads and reach profit.
GST Composition vs Regular
Compare annual tax liability between 1% flat turnover tax and regular GST with ITC.
Dead Stock Holding Cost Tool
Calculate the hidden cost of holding non-moving stock, lost interest, and shelf space.
Strip to Tablet Unit Price
Calculate per-tablet and per-capsule retail prices from strip MRPs for loose dispensing.
Footfall & Conversion Rate
Analyze walk-in footfall, calculate counter conversion rate (%), and Average Ticket Value.
Prescription Bill Margin Tool
Analyze mixed profit margins across doctor prescriptions combining generics and ethicals.
GST Late Fee & Interest Tool
Calculate GSTR-3B late filing fees (₹50/day) plus 18% annual interest on delayed net cash tax.
Schedule X & Narcotic Log
Create opening stock, dispensed dosage, prescription serials, and closing logs for NDPS medicines.
GRN Landed Cost Calculator
Calculate true net landed unit cost factoring in purchase rate, scheme goods (10+1), freight, and ITC.
Salon Chair Utilization Tool
Analyze workstation productivity, calculate chair occupancy rate (%), and find idle capacity.
Pharmacy Min-Max Stock Tool
Calculate Minimum Stock Level, Maximum Holding Level, and Danger Stock Level for medicines.
Retail Shrinkage & Loss Tool
Calculate inventory shrinkage %, reconcile physical stock count with software, and audit losses.
Customer Udhar & Khata Ledger
Track credit balances, calculate overdue aging days, and format WhatsApp payment recovery reminders.
FSSAI License & Reg. Validator
Validate 14-digit FSSAI numbers, decode license type (Central, State, Petty), state, and year.
Service SAC & HSN Finder
Search Services Accounting Codes (SAC 99xx) and goods HSN codes with official GST tax slabs.
MSME 45-Day Payment & Interest
Calculate 15 vs 45-day statutory vendor deadlines and 3x RBI compound interest penalties.
Multi-Currency Invoice Converter
Convert invoice totals between USD, EUR, GBP, AED, SGD, and INR with bank spread fees.
Gold & Jewellery GST Tool
Calculate 22K/24K/18K purity, making charges, wastage (tunch %), and 3% GST on jewellery.
FEFO Batch Expiry Picker
Determine exact First Expired, First Out dispensing queues across multiple medicine batches.
Courier Volumetric & CBM Tool
Calculate dimensional weight (L × W × H / 5000) vs actual weight and CBM volume.
Purchase Order (PO) Generator
Generate and print formal B2B Purchase Orders for pharma distributors and FMCG suppliers.
Delivery Challan Generator
Create GST Rule 55 compliant Delivery Challans for branch stock transfers and job work.
Credit & Debit Note Generator
Generate Section 34 compliant GST Credit Notes for returns & Debit Notes for adjustments.
Section 194Q TDS Calculator
Calculate 0.1% TDS on purchase of goods exceeding ₹50 Lakhs limit and non-PAN penalties.
Home Delivery & Fuel Cost Tool
Calculate vehicle mileage, petrol, rider wages, and minimum order value (MOV) for delivery.
GST Dynamic QR Validator
Validate B2C Dynamic QR codes and decode UPI payment parameters (VPA, amount, txn ref).
Store Asset Depreciation Tool
Calculate annual depreciation on computers, barcode scanners, and racks under SLM & WDV.
Global Sales Tax & VAT Tool
Calculate international VAT, US State Sales Tax, and GST across cross-border retail orders.
Economic Order Quantity (EOQ)
Calculate the optimal order batch size that minimizes ordering and warehouse holding costs.
Employee Gratuity Calculator
Calculate statutory gratuity payout (15/26 days formula) for store staff with 5+ years service.
Bill of Supply Generator
Generate clean GST Bills of Supply for composition scheme dealers and exempt goods.
Loyalty Points & Rewards Tool
Calculate point earn ratios, rupee redemption value, cashback margins, and customer liabilities.
Overtime (OT) Double Wages
Calculate statutory double-rate overtime wages (2x hourly rate) for counter staff under Shops Act.
IV Drip Rate & Flow Calculator
Calculate drops per minute (dpm) and ml/hr for IV fluid administration with macro (20 dpm) and micro (60 dpm) drip sets.
BMI Calculator & Weight Classification
Calculate BMI, classify obesity grade, find ideal weight range, and guide medicine dosing for overweight and obese patients.
Creatinine Clearance & Renal Dose Adjustment
Calculate eGFR / CrCl using Cockcroft-Gault equation and get kidney-stage-specific dose adjustment guidance for renally-cleared drugs.
Medicine Dilution Calculator (C1V1=C2V2)
Calculate IV drug dilution using C1V1=C2V2 formula for hospital pharmacy compounding, antiseptic preparations, and solution preparation.
Pharmacy ABC Analysis Calculator
Classify medicines into ABC categories (70/20/10% revenue split) to optimize purchase priorities and reduce dead stock losses.
Cold Chain Temperature Log
Log and monitor vaccine, insulin and biologic temperatures (2–8°C). Auto-flags cold chain excursions for CDSCO regulatory compliance.
Drug Half-Life & Elimination Calculator
Calculate drug half-life, plasma concentration decay, elimination time, and washout periods for dose timing and drug interaction management.
Body Surface Area (BSA) Calculator
Calculate BSA in m² using Mosteller, DuBois & Haycock formulas for chemotherapy, antifungal and high-alert drug dose calculations.
Insulin Dose & Sliding Scale Calculator
Calculate insulin correction dose using sliding scale based on blood glucose, insulin sensitivity factor, and carbohydrate intake.
ORS / ORT Volume Calculator
Calculate WHO-recommended Oral Rehydration Salt volume for mild, moderate and severe dehydration based on patient weight and age.
Pharmacy License Renewal Tracker
Track Drug License, FSSAI, GST and other pharmacy permit expiry dates. Get countdown alerts before licenses lapse to avoid penalties.
Pill Splitter Cost Optimizer
Calculate patient savings by splitting higher-dose scored tablets. Monthly and annual savings analysis to make medicines more affordable.
Childhood Vaccine Schedule Calculator
Generate complete childhood vaccination schedule based on date of birth following India's National Immunization Programme (NIP) guidelines.
Max Daily Dose & Overdose Risk Checker
Check if prescribed or self-reported doses are within safe maximum limits. Flags overdose risk for paracetamol, NSAIDs, antibiotics and more.
Pharmacy P&L Statement Generator
Generate monthly Profit & Loss statement with revenue, COGS, gross margin, operating expenses, and net profit for your pharmacy.
Free Prescription Pad Generator
Generate a professional printable doctor prescription pad with Rx symbol, patient details, medicines, dosage instructions, and follow-up advice.
Drug Interaction Checker
Check major, moderate and minor interactions between common medicines. Covers severity, mechanism, clinical effects and pharmacist management advice.
Medicine Supplier Rate Comparator
Compare medicine prices from multiple distributors. Calculate best price margin, identify cheapest supplier, and maximize pharmacy procurement savings.
BP Classification & Drug Tier Advisor
Classify blood pressure readings using JNC-8/AHA guidelines. Get first-line antihypertensive drug recommendations by BP stage for patient counselling.
Antibiotic Course & Tablet Count Calculator
Calculate exact number of antibiotic tablets to dispense based on dose, frequency, and course duration. Generates dispensing label and patient cost.
Pharmacy & Medical Terms Glossary
Complete 100+ term medical encyclopedia covering pharmacology, Rx abbreviations (OD, BD, TDS), DPCO rules, and clinical formulations with live search.
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Why Choose MyMBill Free Online Business Tools?
Every tool is engineered to help Indian and global shop owners calculate statutory taxes, margins, dosages, and invoices with 100% accuracy.
100% Free & Unlimited
No login, credit card, or daily calculation limits. Export invoices and receipts without watermarks.
Real-Time Public APIs
Live interbank exchange rates, spot gold prices, and OpenStreetMap routing with zero API keys required.
Isolated Print & PDF
Direct printer-ready formatting. Prints only the target invoice or slip without headers, footers, or browser chrome.
Browser LocalStorage
All inputs are auto-saved in your device's browser sandbox and never uploaded to remote servers.
Frequently Asked Questions
Everything you need to know about using MyMBill free online billing and retail tools.
localStorage sandbox and never transmitted over the internet.
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