--- title: "钢筋计算器" description: "任意规格清单的钢筋重量、长度与每吨根数算量——免费。" image: "https://nestingcalc.com/og-default.png" url: "https://nestingcalc.com/cn/rebar-calculator/" locale: "zh-Hans" --- # 钢筋计算器 任意规格清单的钢筋重量、长度与每吨根数算量——免费。 按规格输入长度和数量，计算器算出每根重量（π/4 × d² × 7850 kg/m³）、整单总吨数以及一吨对应多少根——公制与美制规格都支持。 Interactive calculator (open in browser): [https://nestingcalc.com/cn/rebar-calculator/](https://nestingcalc.com/cn/rebar-calculator/) ## 钢筋重量表 | 直径（mm） | kg/m | lb/ft | 每吨米数 | | --- | --- | --- | --- | | Ø6 | 0.222 | 0.149 | 4505 | | Ø8 | 0.395 | 0.265 | 2534 | | Ø10 | 0.617 | 0.414 | 1622 | | Ø12 | 0.888 | 0.597 | 1126 | | Ø14 | 1.208 | 0.812 | 828 | | Ø16 | 1.578 | 1.061 | 634 | | Ø20 | 2.466 | 1.657 | 405 | | Ø25 | 3.853 | 2.589 | 260 | | Ø28 | 4.834 | 3.248 | 207 | | Ø32 | 6.313 | 4.242 | 158 | | Ø40 | 9.865 | 6.629 | 101 | ## FAQ 钢筋重量怎么算？ 每米重量按截面公式 π/4 × d² × 7850 kg/m³ 计算，它正是经典 d²/162 经验式的精确形式。结果与钢厂供料表一致（仅差舍入）。 包含搭接和损耗吗？ 不包含——请输入所需下料长度。搭接把搭接长度加到每根钢筋上；损耗在数量上加百分比（如每 100 根多加 3 根）。 能用美制钢筋规格吗？ 可以，规格下拉里包含 #3–#11 美制钢筋和公制 6–40 mm。美制规格内部会换算为对应的公制直径。 一吨 12 mm 钢筋有多少根？ 12 mm 钢筋每米 0.888 kg，一吨即 1,126 m——约 93 根 12 米长钢筋。上方图表列出全部公制与美制规格的 kg/m 和每吨根数。 ## 相关计算器 - [金属重量计算器——圆钢、管材与型材](https://nestingcalc.com/cn/metal-weight-calculator/) 钢、不锈钢、铝、铜、黄铜的棒、管、型材与梁重量，单位 kg/m。附密度表。免费。 - [金属板材板规计算器](https://nestingcalc.com/cn/sheet-metal-gauge/) 板规换算 mm/英寸并计算板材重量——碳钢、不锈钢、铝、镀锌板。免费。 - [线性切割计算器](https://nestingcalc.com/cn/linear-cutting-calculator/) 优化型材、管材、棒料的切割方案——减少废料，免费。 ## 相关指南 - [钢筋重量表与钢筋下料表基础](https://nestingcalc.com/cn/guides/rebar-weight-chart/) d²/162 经验式能在几秒内把钢筋图纸换算成公斤。这里讲它的原理，以及箍筋和弯折扣减如何影响吨位。 - [金属重量公式：碳钢、铝、不锈钢按截面计算](https://nestingcalc.com/cn/guides/metal-weight-formula/) 重量决定运费、吊装方案和材料预算。一个公式覆盖所有金属截面——你只需要密度。 ```json [{"@context":"https://schema.org","@type":"Organization","@id":"https://nestingcalc.com/#organization","name":"NestingCalc","url":"https://nestingcalc.com/","description":"免费切割优化与套料计算器","logo":"https://nestingcalc.com/logo-512.png"},{"@context":"https://schema.org","@type":"WebSite","@id":"https://nestingcalc.com/#website","name":"NestingCalc","url":"https://nestingcalc.com/","inLanguage":"zh-Hans","publisher":{"@id":"https://nestingcalc.com/#organization"}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"NestingCalc","item":"https://nestingcalc.com/cn/"},{"@type":"ListItem","position":2,"name":"钢筋计算器","item":"https://nestingcalc.com/cn/rebar-calculator/"}]}] [{"@context":"https://schema.org","@type":"WebApplication","@id":"https://nestingcalc.com/cn/rebar-calculator/#webapp","name":"钢筋计算器 — NestingCalc","url":"https://nestingcalc.com/cn/rebar-calculator/","applicationCategory":"DesignApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"},"publisher":{"@id":"https://nestingcalc.com/#organization"}}] ```