मिट्टी कार्य आयतन कैलकुलेटर
खुदाई या भराव का मिट्टी आयतन निकालें।
कुल वज़न
88.8 kg
Total Weight vs Bar Diameter
सूत्र
Steel Bar Weight Calculation
Steel weight is calculated from the cross-sectional area, length, and density.
Formula
Weight per metre = (pi/4) x D^2 x rho
where D is the bar diameter in metres and rho is steel density (7850 kg/m^3).
Quick Formula
Weight (kg/m) = D^2 / 162 (where D is in mm)
This handy shortcut comes from simplifying pi/4 x (D/1000)^2 x 7850.
हल किया गया उदाहरण
100 metres of 12 mm diameter rebar.
- 01Weight per metre = pi/4 x (0.012)^2 x 7850 = 0.888 kg/m
- 02Quick check: 12^2 / 162 = 144/162 = 0.889 kg/m
- 03Total weight = 0.888 x 100 = 88.8 kg
अक्सर पूछे जाने वाले प्रश्न
What are standard rebar sizes?
Metric: 6, 8, 10, 12, 16, 20, 25, 32, 40 mm. US/Imperial: #3 (10mm), #4 (13mm), #5 (16mm), #6 (19mm), #7 (22mm), #8 (25mm), #9 (29mm), #10 (32mm), #11 (36mm).
How do I calculate the number of bars?
Total length = number of bars x bar length + lap splice allowances. Add 10-15% for waste, bends, laps, and cutting losses.
Does this formula work for other steel shapes?
For round bars, yes. For structural sections (I-beams, channels), use the weight per metre from manufacturer tables, as the cross-section is not a simple circle.
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