Free business tools for Indian teams
GST calculators, D2C unit economics, OEE, DSO, ROAS, Tally converters, and more built by the FireAI team. No signups, no rate limits, no API costs. Run them right in your browser.
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Finance & GST
GST calculators, reconciliation, and financial health tools for Indian businesses.
Finance & GST
GST Calculator CGST, SGST & IGST (Free)
Free GST calculator for India. Add or remove GST at 0%, 5%, 12%, 18%, 28% split CGST/SGST for intra-state, IGST for inter-state. Runs in your browser.
Finance & GST
Lakhs & Crores Converter
Convert between lakhs, crores, millions and billions instantly. Live USD overlay using ECB rates. Indian comma formatting. Runs in your browser.
Finance & GST
GST Late Fee & Interest Calculator
Compute GST late fee and interest for GSTR-1, 3B, 4, 9 and 9C. Per-day fee, turnover-based caps, 18% / 24% interest. CGST + SGST split. Free, browser-only.
Finance & GST
Tally XML to Excel Converter
Convert Tally XML exports to Excel (.xlsx) in your browser. Daybook, ledger, stock summary with voucher-level rows; no upload to any server.
Finance & GST
GSTR-2B Reconciliation Tool
Reconcile GSTR-2B vs purchase register online. Match GSTIN, invoice, date, value with tolerance. Export full Excel report. Free, browser-only.
Finance & GST
Financial Health Scorecard
Compute current ratio, quick ratio, D/E, ROCE, ICR, DIO, net margin and a combined 0-100 health score with red/yellow/green bands. Free.
Marketing
Ad spend ROI, unit economics, and growth math.
Marketing
D2C Unit Economics Calculator
Compute CAC, LTV, payback months and contribution margin per channel for D2C / e-commerce. Indian benchmarks included. Free, client-side.
Marketing
ROAS Calculator: Return on Ad Spend
Calculate ROAS, blended ROAS, break-even ROAS, profit and required target spend across Meta, Google, Amazon. Free, runs in browser.
Marketing
Analytics & BI ROI Calculator
Estimate annual savings, payback months and 3-yr NPV from analytics adoption. Hard + soft savings, decision speedup, license avoidance. Free.
Marketing
RFM Segmentation Tool
Upload customer order CSV. Auto-quintile RFM scoring. 11 named segments: champions, at-risk, lost. Export per-segment CSVs. Free.
Operations
Inventory, receivables, OEE, and operational efficiency.
Operations
Inventory Days Calculator
Calculate Days Inventory Outstanding (DIO), inventory turnover ratio, and reorder point. Bulk CSV mode for SKU-level rollup. Free.
Operations
DSO Calculator
Compute Days Sales Outstanding (DSO), AR turnover, and collection efficiency vs industry benchmark. Free, browser-only.
Industry-specific
Specialised calculators for F&B, FMCG, manufacturing, logistics.
Industry-specific
Food Cost Calculator
Compute food cost %, contribution margin, and ideal selling price per dish. Bulk-paste a menu to see outlet-wide rollup. Free.
Industry-specific
OEE Calculator
Compute OEE = Availability × Performance × Quality. Colour-coded vs world-class 85%. Free, runs in browser. Indian manufacturing context.
Industry-specific
Menu Engineering Matrix
Auto-classify menu items into stars, dogs, puzzles, plowhorses using cost + popularity. Quadrant chart + export. Free, in-browser.
Industry-specific
Lane Profitability Calculator
Compute per-trip P&L and per-km margin for trucking and logistics. Fuel, tolls, driver, maintenance, EMI, return-leg fill rate. Free.
Industry-specific
FMCG Beat Productivity Calculator
Measure FMCG beat productivity: outlets visited, productive calls, lines per call, average bill value. Identify beat optimisation. Free.
Data & developer
CSV, SQL, and data-prep utilities.