Free tool for interior designers

Interior quotation calculator

Estimate room-wise work, apply a discount and GST, and check the final quotation total. Calculations stay in this browser.

Calculate your quotation

Room / work item	Quantity	Rate (₹)	Amount	Remove

Discount (%)

Subtotal₹0

Discount amount− ₹0

GST (%)

GST amount₹0

Grand total₹0

This calculator provides arithmetic only. Confirm measurements, tax treatment, specifications and current material or labour rates before sending a quotation.

How interior quotation totals are calculated

For each work item, multiply the quantity by the unit rate. Add all item amounts to get the subtotal. Deduct the agreed discount, then calculate applicable GST on the discounted amount. Keep the measurement unit clear in your final quotation—for example square feet, running feet, units or lump sum.

Need a detailed structure for client details, materials, payment terms and exclusions? Read the interior design quotation format and sample guide.

Before you share an interior estimate

Check site measurements and state the measurement basis.
Attach material, finish, hardware and thickness specifications.
Separate included work from civil, electrical and appliance exclusions.
Show discount, GST, transport and installation charges clearly.
Add quotation validity, payment milestones and a variation process.

Turn this estimate into a professional PDF

DesignQuote.in saves reusable items, organises work room by room, adds your branding and creates mobile or A4 quotation PDFs.

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