16mm Rebar Weight per Metre (and per Bar)
16mm B500B rebar weighs exactly 1.58 kg per metre, with a cross-section of 201.1 mm². A standard 12 m bar weighs approximately 19.0 kg — meaning about 53 bars per tonne and 633 metres of steel. This guide provides verified weight data, procurement tables and export information for international buyers.
16mm Rebar Weight per Metre: The Calculation
Steel bar weight is derived from the standard formula used universally in DIN 488, EN 10080 and BS 4449:
kg/m = d² (mm) × 0.00617
For 16mm nominal diameter: 16² × 0.00617 = 256 × 0.00617 = 1.579 kg/m, tabulated as 1.58 kg/m in standard references. The cross-sectional area is π/4 × 16² = 201.1 mm², rounded to 201 mm² in most design aids and Mill Test Certificates.
This figure applies to ribbed (deformed) B500B bars as produced by German mills under DIN 488. The 0.00617 coefficient is derived from carbon steel density (≈ 7,850 kg/m³) and the π/4 factor, making it consistent across all metric reinforcing bar standards.
16mm Rebar Weight Table: Per Bar by Length
| Bar length | Weight per bar (kg) | Bars per tonne | Metres per tonne |
|---|---|---|---|
| 6 m | 9.47 | 106 | 633 |
| 9 m | 14.20 | 70 | 633 |
| 12 m (standard) | 18.94 | ≈ 53 | ≈ 633 |
| 15 m | 23.68 | 42 | 633 |
| 18 m | 28.42 | 35 | 632 |
The metres-per-tonne figure of 633 m/t is the constant for 16mm rebar — a useful cross-check regardless of which bar length your project uses. To convert: tonnes needed = (total metres required) / 633.
Quick Reference: 16mm Rebar Physical Properties
| Property | Value |
|---|---|
| Nominal diameter | 16 mm |
| Cross-sectional area | 201.1 mm² |
| Unit weight | 1.58 kg/m |
| Weight per 6 m bar | 9.47 kg |
| Weight per 12 m bar | 18.94 kg |
| Bars per tonne (12 m) | ≈ 53 |
| Metres per tonne | ≈ 633 m |
| Grade (standard) | B500B per DIN 488 / EN 10080 |
Comparing 16mm to Neighbouring Diameters
The 16mm bar is the first diameter in the standard range to exceed 200 mm² cross-section, which is a common threshold in many structural design tables. This makes it the natural step up from 14mm (154 mm²) for heavier slab and beam applications.
| Diameter | Area mm² | kg/m | kg / 12 m bar | Bars/tonne (12 m) |
|---|---|---|---|---|
| 12 mm | 113 | 0.888 | 10.66 | 94 |
| 14 mm | 154 | 1.209 | 14.51 | 69 |
| 16 mm | 201 | 1.580 | 18.94 | 53 |
| 20 mm | 314 | 2.470 | 29.64 | 34 |
For a full diameter comparison across the DIN 488 range (6–40 mm), see the complete rebar weight chart. For guidance on where 16mm is applied structurally, read our companion article on 16mm rebar uses.
Procurement and Export: Ordering 16mm Rebar from Germany
We supply 16mm B500B rebar in the following configurations:
- Stock bars: 6, 9, 12 and 18 m lengths, ribbed surface, B500B grade.
- Cut-to-length: Custom lengths per your reinforcement schedule (minimum order quantities apply).
- Cut-and-bend: Bent to DIN 488 shape codes or BS 8666 bending schedules — see our cut-and-bend service.
- Bundle weight: Typically 2 tonnes per seaworthy bundle; at 18.94 kg/bar, a 2 t bundle contains approximately 106 bars of 12 m length.
- Container loading: 40-ft flat-rack or open-top for 12–18 m bars; 20-ft container for 6 m cut lengths.
- Documents: Mill Test Certificate EN 10204 3.1, Certificate of Origin, CE Declaration of Performance, packing list.
Incoterms available: FOB Hamburg/Bremen, CFR or CIF to named port. Visit our export and delivery page for full logistics details, or request a quotation with your tonnage and destination port.
Frequently Asked Questions — 16mm Rebar Weight
What is the exact weight of 16mm rebar per metre?
How heavy is a single 12 m bar of 16mm rebar?
How many metres of 16mm rebar are in one tonne?
What is the cross-sectional area of a 16mm rebar bar?
Is 16mm rebar available with a Mill Test Certificate from Germany?
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