Try the calculator
First-pass estimate — confirm final quantities against your engineer's design.
Wet mortar volume
0.59m³
Cement
4bags
Sand
28cft
Indicative cost
₹ 3,060
Live estimate · Prices indicative for Guna district (2026)
Key points
- 1:6 for internal, 1:4 for external plaster (rough default).
- Adds 30% for uneven surface + 20% wet-to-dry loss (factor 1.5).
Formula & how it works
Wet volume = area × thickness (in metres).
Dry volume = wet × 1.30 (roughness) × 1.20 (bulking).
Cement / sand split by mix ratio.
Worked example
- 500 sq ft internal plaster 12 mm with 1:6.
- Wet ≈ 0.57 m³ → dry ≈ 0.89 m³ → cement ≈ 0.13 m³ ≈ 4 bags + 33 cft sand.
Expert tips & mistakes to avoid
- Always add a 5–7% wastage buffer — mid-slab shortages cost more than the buffer bags.
- For engineered members (RCC columns/beams), follow the structural drawing over any calculator.
- Order cement in tranches — bags older than 90 days lose strength.
- Confirm the current market rate on WhatsApp before finalising the budget — prices printed here are indicative only.
Frequently asked questions
Do I need a chicken mesh?
+
Only over dissimilar joints (RCC-brick), electrical chases and large openings to prevent cracks — factor separately.
Ready to order?
Send us the calculator results — we'll confirm today's rate for cement, TMT and delivery within 30 minutes during shop hours.