单价比较计算器
比较不同产品的单位价格，找到最划算的选择。支持重量、体积、数量和长度单位的自动转换。
比较不同产品的单位价格，找到最划算的选择。输入价格、数量和单位。
商品 1
$
商品 2
$
所有计算都在浏览器中进行，不会向任何服务器发送数据。
How to Use This Tool
- 1
Add products
Enter the price, quantity, and unit for each product you want to compare. Optionally add a name.
- 2
Select matching units
Choose the same unit type (weight, volume, etc.) for accurate comparison. The tool auto-converts within the same group.
- 3
Compare unit prices
The tool calculates the price per base unit for each item and highlights the best deal in green.
- 4
Add more items
Click "Add Item" to compare up to 10 products at once.
Frequently Asked Questions
- How is unit price calculated?
- Unit price is calculated by dividing the total price by the quantity, then converting to a standard base unit (e.g., per 100g for weight, per 100mL for volume).
- Can I compare different units?
- Yes, within the same unit group. For example, you can compare grams vs kilograms or mL vs liters. The tool auto-converts to the same base unit.
- What does 'Best Deal' mean?
- The item marked as 'Best Deal' has the lowest price per base unit among comparable items, meaning you get more value for your money.
- Is my data secure?
- Yes. All calculations happen entirely in your browser. No product or price data is sent to any server.