增值税/消费税/销售税计算器
免费的增值税、消费税和销售税计算器。向净额添加税款或从总额中提取税款。适用于任何税率 — 英国、欧盟、美国、澳大利亚等。
Runs in your browserUpdated Apr 26, 2026
VAT / GST / Sales tax calculator
Net
100.00
Tax
20.00
Gross
120.00
常见问题
›How do I add VAT to a net amount?
Multiply the net amount by 1 + VAT rate. For 20% VAT: net × 1.2 = gross. So £100 net = £120 gross.
›How do I extract VAT from a gross amount?
Divide the gross by 1 + VAT rate, then subtract from the gross. For 20%: gross ÷ 1.2 = net, gross − net = VAT.
›Does this work for US sales tax?
Yes — sales tax math is identical to VAT math; just enter your local rate (e.g. 8.875% for NYC).
›What's the standard UK VAT rate?
20% standard rate, 5% reduced (e.g. domestic energy), 0% zero-rated (most food, books, children's clothing).
›Is the calculator free?
Yes — fully free, no signup, runs in your browser.