一平方米要几块 30 厘米的砖？

约 11 块 30 × 30 厘米的砖。11 平方米的地面按 10% 损耗计算，大约需要 132 块。

需要多少瓷砖胶？

一袋 23 公斤用 6 毫米齿形刮刀可铺 3.5–5.5 平方米。大规格砖需要更大齿形，每袋覆盖降至约 3 平方米。

填缝要留多宽？

精修砖 1.5–3 毫米，普通陶瓷砖 5 毫米，手工砖 6 毫米以上。窄于 3 毫米必须用无砂填缝剂。

铺好后多久可以踩？

24 小时后可轻微走动，48–72 小时后再填缝。胶未固化就踩会破坏粘结，砖日后会发出空鼓声。

瓷砖下面需要水泥板吗？

地面需要，除非基层是混凝土。让瓷砖和填缝开裂的是挠曲变形，而木基层的变形远超瓷砖所能承受。

瓷砖计算器

计算地面、墙面和厨房挡水墙所需的瓷砖片数、箱数与成本。砖规格、每箱片数和损耗率均可调整。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

铺贴面积(ft²)

瓷砖规格

损耗百分比

每箱片数

每箱单价（选填）($)

Result

Tiles

132

Boxes

Coverage

120 ft²

Tile size: 12"
Waste: 10%

Waste default: 10% — TCNA 手册建议直铺留 10% 损耗，斜铺留 15%。

Diagram

Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.

公式

片数 = 向上取整(面积 × (1 + 损耗) ÷ 单片面积)

参考资料

Measure what the tool asks for
This calculator works from 铺贴面积 in ft² and 每箱单价（选填） in $. Measure the finished area you are covering, not the material — an estimate is only as good as the dimensions you feed it.
What it does with those numbers
片数 = 向上取整(面积 × (1 + 损耗) ÷ 单片面积) Every figure on the page comes out of that one expression, so you can check it by hand.
Why it adds 10% waste
TCNA 手册建议直铺留 10% 损耗，斜铺留 15%。
Choosing a 瓷砖规格
Pro tip: Larger tiles (18"+) make small rooms feel bigger and have fewer grout joints to clean, but require a flatter substrate.
Where the numbers come from
The constants are taken from TCNA Handbook for Ceramic, Glass, and Stone Tile Installation, ANSI A108/A118/A136 — American National Standards for tile installation and ASTM C627 — Evaluating Ceramic Floor Tile Installation Systems, linked in full below. If a figure here disagrees with your supplier's spec sheet, use the spec sheet — it describes the product you are buying.
What this will not tell you
This is a material takeoff, not a bid. It does not price labour, permits, delivery, equipment hire or site preparation, and it assumes a straightforward layout. Complex cuts, difficult access and awkward shapes all cost more than the geometry suggests.

Related tools & materials

Calculators

Flooring Calculator

Don't forget

瓷砖胶
填缝剂
十字定位器
水泥板
防护剂

Also useful

Astrilio Property Calculators

常见问题

直铺 10%，斜铺或人字铺 15%——后者每一块边缘砖都要切割，切下来的余料几乎无法他用。

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Cite this page

Cosyslabs. (2026). 瓷砖计算器. Rough Estimator!. https://roughestimator.com/zh/tile-calculator

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