India-specific calculators
The Indian-special section gathers calculators that follow Indian law and conventions rather than generic global ones: GST invoice totals with CGST / SGST / IGST splits, TDS on common payment types, HRA exemption from rent and salary, EPF balance projections, gold price calculations by weight and purity, Indian land-area conversions (bigha, gunta, kattha, acre, hectare), vehicle-loan EMIs and education-loan EMIs with moratorium.
These tools follow the rules and formats published by the Income Tax Department, GST council, EPFO and Bureau of Indian Standards. Slabs and rates change with Union Budgets and policy updates, so always verify the current numbers against the official source for compliance-critical decisions.
When to use these tools: Use these tools when issuing a GST invoice, claiming HRA exemption in your tax return, planning EPF withdrawals, buying gold by weight, converting land area between local and metric units, or planning a vehicle or education loan.