GST Calculator - Calculate GST Amount Online
Calculate GST amount instantly. Find CGST, SGST, and IGST breakdowns for any amount with our free online GST calculator for Indian businesses.
Calculate GST
Enter the base amount before GST
Select applicable GST rate
GST Amount
₹1,800
CGST
₹900
SGST
₹900
Total Amount (with GST)
₹11,800
How to Use This GST Calculator
Using our GST Calculator is simple and takes just a few seconds. Enter your values using the sliders or input fields above, and the results will update instantly — no need to click a calculate button.
All calculations are performed in your browser using standard financial formulas. Your data is never stored or transmitted to any server, ensuring complete privacy.
The results shown are estimates based on the inputs you provide. For precise figures, consult with your bank or financial advisor. Use this tool for quick comparisons, planning, and understanding how different variables affect your financial outcomes.
Formula & Explanation
GST Amount = (Original Price × GST Rate) / 100For intra-state transactions: CGST = GST/2, SGST = GST/2. For inter-state transactions: IGST = Full GST amount. The total price = Original Price + GST Amount.
Calculation Examples
18% GST on Services
₹10,000 service with 18% GST
GST: ₹1,800 | Total: ₹11,800
28% GST on Luxury Items
₹50,000 luxury item with 28% GST
GST: ₹14,000 | Total: ₹64,000
Benefits
- Instant GST calculation
- CGST/SGST/IGST breakdown
- All GST slab rates supported
- Perfect for invoicing
- Helps in tax planning
Use Cases
- Business invoicing
- Price quotation
- Tax filing preparation
- Cost estimation
- Billing verification
About GST Calculator
Our GST Calculator helps businesses and individuals calculate Goods and Services Tax quickly and accurately. Get instant CGST, SGST, and IGST breakdowns for any transaction amount. Perfect for invoicing, billing, and tax planning.
Frequently Asked Questions
India's GST has four main slabs: 5% (essential goods like edible oil, sugar, spices, economy hotels), 12% (processed foods, mobile phones, business-class hotels), 18% (most services, electronics, AC restaurants), and 28% (luxury goods, automobiles, aerated drinks, tobacco). A zero rate (0%) applies to fresh vegetables, milk, and health services. Exports are also zero-rated. Use the free GST Calculator on AbacusHand to calculate your exact result instantly.
To add GST: multiply the base price by the GST rate. For a product priced at ₹10,000 with 18% GST → GST = ₹1,800 → total = ₹11,800. To remove GST from an inclusive price: divide by (1 + GST rate). So ₹11,800 ÷ 1.18 = ₹10,000 base, GST = ₹1,800. This reverse calculation is useful when a seller quotes MRP. Use the free GST Calculator on AbacusHand to calculate your exact result instantly.
Most services in India attract 18% GST — including IT services, consulting, telecom, banking fees, insurance premiums, and AC restaurant services. Some services attract 12% GST (construction, work contracts). Healthcare, educational services, and services by charitable organisations are exempt. Businesses registered under GST can claim input tax credit on the GST paid on services. Use the free GST Calculator on AbacusHand to calculate your exact result instantly.
CGST (Central GST) and SGST (State GST) are levied on intra-state transactions at half the applicable rate each. On a ₹10,000 sale within Maharashtra at 18%: CGST = 9% (₹900) and SGST = 9% (₹900). IGST (Integrated GST) is charged on inter-state transactions at the full rate — 18% = ₹1,800 on ₹10,000. IGST revenue is shared between the Centre and the destination state. Use the free GST Calculator on AbacusHand to calculate your exact result instantly.
To find the base price from a GST-inclusive amount, use: Base Price = Inclusive Price ÷ (1 + GST%/100). Example: a product priced at ₹59,000 inclusive of 18% GST → base price = ₹59,000 ÷ 1.18 = ₹50,000, GST component = ₹9,000 (CGST ₹4,500 + SGST ₹4,500). This is the standard reverse GST formula used by Indian businesses. Use the free GST Calculator on AbacusHand to calculate your exact result instantly.