Steel weight calculator: weight, price and coating area for a whole list
Sections, tubes, flats and plates to EN, GOST and ASME/ASTM.
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Type a section in the box above or pick it from the menus, enter length and quantity and press Enter. Try:
| # | Section | Length, mm | Qty | kg/m | kg/pc | kg | m²/m | Coat. m² | Amount, € | Actions |
|---|---|---|---|---|---|---|---|---|---|---|
For the exact number of bars and the waste (with the kerf), use Linear cutting (1D) →
Theoretical weight from nominal dimensions (steel 7850 kg/m³). Actual weight varies within the standard's tolerances (e.g. ±4–6 % per length). The result is indicative and does not replace the mill certificate or a weighbridge. Beta: if you spot an error, please tell us.
How many bars to buy, and how much waste?
Profile types and standards
The quick-pick types of the calculator: standard, number of sizes, smallest to largest size and theoretical mass per metre (per m² for plates).
| Type | Standard | Sizes | Range | Mass |
|---|---|---|---|---|
| HEA — wide-flange beam (light) | EN 10365:2017 | 24 | HEA 100 – HEA 1000 | 16.7–272 kg/m |
| HEB — wide-flange beam | EN 10365:2017 | 24 | HEB 100 – HEB 1000 | 20.4–314 kg/m |
| IPE — I-beam | EN 10365:2017 | 18 | IPE 80 – IPE 600 | 6–122 kg/m |
| UPN — taper flange channel | EN 10365:2017 | 18 | UPN 50 – UPN 400 | 5.59–71.8 kg/m |
| L — equal angle | EN 10056-1:2017 | 202 | L 20x20x3 – L 300x300x35 | 0.882–154 kg/m |
| L — unequal angle | EN 10056-1:2017 | 75 | L 30x20x3 – L 200x150x15 | 1.12–39.6 kg/m |
| Square hollow section (SHS) | EN 10219-2:2019 | 67 | SHS 15x1.5 – SHS 300x12.5 | 0.59–108 kg/m |
| Rectangular hollow section (RHS) | EN 10219-2:2019 | 76 | RHS 20x10x1.5 – RHS 400x200x12.5 | 0.59–108 kg/m |
| Circular hollow section / pipe (CHS) | EN 10220 / EN 10219-2 | 128 | Ø16x1.5 – Ø508x12.5 | 0.536–153 kg/m |
| Flat bar | EN 10058:2018 | 223 | FL 10x3 – FL 200x30 | 0.235–47.1 kg/m |
| Round bar | EN 10060:2003 | 44 | Ø5 – Ø250 | 0.154–385 kg/m |
| Square bar | EN 10059:2003 | 24 | □8 – □150 | 0.502–177 kg/m |
| Sheet / plate | EN 10051 / EN 10029 / EN 10131 | 37 | PL 0.5 – PL 150 | 3.925–1177.5 kg/m² |
| Teardrop / chequer plate | EN 10363 | 8 | PLT 2 – PLT 10 | 18.2–81 kg/m² |
More types in the calculator:
- EN (Europe): HE AA (24 sizes), HEM (24 sizes), IPE A (18 sizes), IPE AA (9 sizes), IPE O (13 sizes), IPE V (5 sizes), IPN (21 sizes), UPE (14 sizes), Hexagon bar (20 sizes).
- GOST: Channel П, GOST 8240 (parallel flanges) (18 sizes), I-beam GOST 8239 (taper flange) (17 sizes), I-beam Б (normal) GOST 26020 (27 sizes), I-beam Ш (wide flange) GOST 26020 (21 sizes), I-beam К (column) GOST 26020 (18 sizes), Channel У, GOST 8240 (taper flange) (18 sizes), Equal angle GOST 8509 (89 sizes), Unequal angle GOST 8510 (62 sizes), Seamless pipe GOST 8732 (238 sizes), Welded pipe GOST 10704 (172 sizes), Square hollow section GOST 30245 (82 sizes), Rectangular hollow section GOST 30245 (230 sizes), Round bar GOST 2590 (46 sizes), Square bar GOST 2591 (33 sizes), Flat bar GOST 103 (284 sizes).
- ASME / ASTM (US): W (97 sizes), S (23 sizes), C (29 sizes), MC (18 sizes), L (26 sizes), L (11 sizes), HSS (62 sizes), HSS (14 sizes), Pipe ASME B36.10M (carbon steel) (772 sizes), Pipe ASME B36.19M (stainless) (93 sizes).
Sources: ASME B36.10M-2018: outside diameter and wall from Table 2-1 of the standard (the numbers only); the mass is calculated from them with the standard's formula. ASME B36.19M-2004: outside diameter and wall from Table 1 of the standard (the numbers only); the mass is calculated from them with the standard's formula. US shapes (W, S, C, MC, L, HSS): dimensions and nominal weight of selected shapes from the AISC Shapes Database v16.0 (a subset, without section properties). GOST 8240-97: dimensions from the text of the standard on ru.wikisource (CC BY-SA 4.0).
How the weight is calculated
The mass of a line item is m = A · ρ · L: the cross-section area A, the density ρ and the length L. For steel ρ = 7850 kg/m³, so 1 cm² of section weighs 0.785 kg per metre. The mass per metre (kg/m) comes from the standard's table or, where the table has none, from the nominal dimensions; the tag next to the size tells which.
Plates are calculated by area: 7.85 kg/m² for every millimetre of thickness. On teardrop plate the pattern adds about 2.5 kg/m² (mill dependent).
Choosing a material changes the density ρ (kg/m³): Stainless 1.4301 / 1.4307 (304) — 7900, Stainless 1.4404 / 1.4571 (316) — 8000, Aluminium (6060 / 6082) — 2700, Copper Cu-ETP — 8930, Brass CW614N — 8470.
The paint (coating) area is the outer surface per metre of length (m²/m) from the table, times the length and the quantity; plates count both faces.
The result is the theoretical weight from the nominal dimensions. The actual weight varies within the standard's tolerances; see the accuracy question below.
Frequently asked questions
Is the steel weight calculator free?
Yes. The calculator is free and needs no sign-up. The list is kept in this browser, and the “Share” button gives a link that opens it on another device.
How accurate is the calculated weight?
It is the theoretical weight: nominal dimensions from the standard's table and a density of 7850 kg/m³ for steel. The actual mass of a single length varies within the standard's tolerances, e.g. ±6 % for t ≤ 4 mm and ±4 % for t > 4 mm for angles to EN 10056-2. For a deal, the mill certificate and the weighbridge apply.
Which standards are the sizes from?
EN (Europe): EN 10365, EN 10056-1, EN 10219/10210, EN 10220, EN 10058–10061; GOST: GOST 8239, 26020, 8240, 8509, 8510, 8732, 10704, 30245, 2590, 2591, 103; ASME / ASTM (US): Pipe ASME B36.10M / B36.19M; shapes ASTM A6 / AISC (W, S, C, MC, L, HSS). EN is selected by default; the buttons above the search switch the standard.
How many bars should I buy, and how much waste will there be?
The weight calculator does not plan the cuts. Enter the lengths in Linear cutting (1D): it nests the pieces into stock lengths (e.g. 6 or 12 m), allows for the kerf, and shows the number of bars and the waste.
How is the paint and galvanizing area calculated?
The area is the outer surface per metre (m²/m) from the table, times the length and the quantity; plates count both faces. Hot-dip galvanizing also coats the inside of tubes: tick “Include the inside of tubes (galvanizing)”. Tick “Include plate edges” if the plate edges are painted too.