Price any regular slotted carton in a minute: blank size, box weight, cost build-up, price per box and per kg, price breaks and what a kraft hike does to your margin.
Box
Regular slotted carton (RSC). Enter inside dimensions.
mm
mm
mm
pcs
mm
Usually 30–40 mm
Board
Paper per layer
Layer
GSM
BF
Flute
Kraft ₹/kg
Top liner
–
Flute 1
Middle liner
–
Flute 2
Inner liner
–
Flute take-up factors
How many metres of flute paper go into one metre of board. These are typical values. Use your own if you know them.
Rates
%
Trim and process
₹/kg
Power, starch, labour
₹/box
₹/box
₹
One-time, spread over the order
₹
0 for ex-works
pcs
Price
%
Share of selling price
Confirm the GST rate for HSN 4819 with your CA. It changed in September 2025.
Price per box
₹19.55
Per kg
₹62.03
5,000 boxes: ₹97,750.00 + 5% GST = ₹1,02,637.50
Blank (sheet) size
1035 mm × 350 mm
Board GSM
870 g/m²
Box weight
315 g
Paper for this order
1,655 kg
Cost build-up per box
Paper
₹11.98
Wastage
₹0.60
Conversion
₹2.87
Printing and plate
₹1.00
Glue / stitching
₹0.35
Freight
₹0.00
Cost per box
₹16.79
Margin (14%)
₹2.76
Price per box
₹19.55
Price breaks
Only the plate share changes with quantity.
Quantity
Price / box
Order incl. GST
1,000
₹20.90
₹21,945.00
2,500
₹19.90
₹52,237.50
5,000
₹19.55
₹1,02,637.50
10,000
₹19.35
₹2,03,175.00
Kraft moved?
₹/kg
If kraft rises by ₹2.00/kg, cost rises by ₹0.66 per box. Keep the same margin by charging ₹20.30.
Board GSM. Add the GSM of every layer. Multiply fluted layers by the take-up factor first.
Box weight. Blank area in m² × board GSM ÷ 1000.
Paper cost. Blank area × sum of (GSM × take-up × kraft rate) ÷ 1000.
Add the rest. Wastage as a percent of paper, conversion per kg of box, printing, plate cost spread over the order, stitching or gluing, and freight per box.
Price. Cost ÷ (1 − margin), rounded to the nearest 5 paise.
Worked example
A 5 ply box, 300 × 200 × 150 mm inside, 150 GSM 18 BF paper on all layers at ₹38/kg, B and C flutes, 5,000 boxes, 1 colour print.
Cost per box: ₹16.79. At 14% margin the price is ₹19.55, or ₹62.03 per kg.
Box ka rate kaise nikaale
Pehle box ki andar ki size (L × W × H) lijiye. Sheet ki lambai = 2 × (L + W) + joint flap, aur chaudai = H + W. Har layer ka GSM jodiye; flute wali layer ko take-up factor se guna kijiye. Isse box ka wazan nikalta hai. Wazan ko kraft rate se guna karke paper ka kharcha, phir wastage, conversion, printing aur stitching jodiye. Yeh aapki cost hai. Cost ko (1 − margin) se bhaag dijiye, yeh aapka rate hai.
Questions
What is the formula for corrugated box cost?+
Cost per box = paper cost + wastage + conversion + printing + glue + freight. Paper cost = blank area (m²) × sum of (GSM × take-up × kraft rate) ÷ 1000. Price = cost ÷ (1 − margin).
How do I calculate the weight of a corrugated box?+
Box weight (kg) = blank area (m²) × board GSM ÷ 1000. Board GSM adds up every layer, with fluted layers multiplied by their take-up factor.
What is flute take-up factor?+
Fluted paper is wavy, so one metre of board uses more than one metre of flute paper. Typical factors are A 1.50, C 1.45, B 1.35 and E 1.25. Use your corrugator's own figures if you have them.
How do I convert price per box to price per kg?+
Price per kg = price per box ÷ box weight in kg. The calculator shows both so you can answer buyers who ask either way.