Unit Price Calculator
Compare products by unit price to find the best value for money.
⚠️ Not financial advice. Results are illustrative only and should not be used as the basis for any investment, tax, or financial decision. Consult a qualified financial adviser or chartered accountant before acting on any figure shown.
| Product | Unit price | Value |
|---|---|---|
| Small pack | ₹22.500/100g | |
| Large pack | ₹12.000/100g | |
| Bulk bag✓ best value | ₹11.200/100g |
Unit prices are normalised per 100g (weight), 100ml (volume), or per cm (length) for fair comparison. Mixed units (e.g., kg vs each) cannot be directly compared.
Unit Price Calculator — Find the Best Value for Money Across Pack Sizes and Brands
Supermarkets and online retailers are experts at making price comparisons difficult. A 500g pack at ₹89 might seem cheaper than a 1kg pack at ₹160 — until you calculate that the 1kg pack costs ₹16 per 100g versus ₹17.80 per 100g for the smaller pack. Multiplied across a household's weekly grocery shop, these per-unit differences add up to meaningful savings. This calculator normalises all product quantities to a common unit and instantly shows you which option delivers the best value per 100g, per 100ml, or per unit.
How to compare products
Add each product by entering its name, price, quantity, and unit of measurement. The calculator supports all common units: grams (g), kilograms (kg), milligrams (mg), millilitres (ml), litres (L), ounces (oz), pounds (lb), and dimensionless units for per-item comparisons. Click "Add product" to compare as many options as you need. The results table shows the price per 100g (for weight) or per 100ml (for volume) for each product, normalised to the same base unit so direct comparison is instant. The best-value product is highlighted in green. Works with any currency — just type your currency symbol in the currency field.
When unit price comparison matters most
Grocery shopping is the most common use case, but unit price comparison applies anywhere products come in variable pack sizes: printer ink cartridges (price per page), protein powder (price per 100g of protein, not just per 100g of powder), coffee beans (price per cup), vitamins and supplements (price per tablet), and cleaning products (price per use). In wholesale and B2B purchasing, the difference between buying in bulk versus standard quantities can represent 15–30% cost savings — but only if you calculate the unit price correctly rather than looking at the headline price.
Who uses this tool
Savvy shoppers use it at the supermarket or on e-commerce sites when comparing two or three competing products to find genuine value rather than falling for larger-number marketing. Parents managing household budgets use it weekly to identify which pack sizes deliver the best cost-per-use for staple items. Small business owners use it when purchasing supplies in bulk to verify that the price per unit actually represents a saving over standard quantities. Students learning personal finance use it to develop the habit of thinking in unit cost rather than headline price.
Privacy and data handling
All price comparisons run entirely in your browser — product names, prices, and quantities are never sent to any server.
Frequently asked questions
- What is unit price?
- Unit price is the cost per standard unit of measurement — for example, price per 100g or per 100ml. Comparing unit prices tells you which pack size or product gives more value for your money.
- How are different units compared?
- The calculator normalises all weights to grams, volumes to millilitres, and lengths to centimetres before dividing the price. This lets you compare a 500g pack against a 1kg pack or a 250ml bottle against a 1L carton.
- Can I mix weight and volume units?
- No — weight and volume are different physical quantities and can't be directly compared. The calculator groups products by unit type and only compares within the same group.
- Can I add more than 3 products?
- Yes. Click '+ Add product' to add products need. The best value product in each unit group is highlighted in green.
- What currency symbols are supported?
- You can type any symbol in the currency field — ₹, $, €, £, or anything else. It's purely a display label and doesn't affect calculations.
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