Price Per Kg Visualizer -- Compare Unit Prices

Divide the total price by the weight in kilograms: Price per kg = Price / Weight (kg). For other units, convert to kg first: divide grams by 1000, multiply pounds by 0.454, or multiply ounces by 0.0283. Example: $5 for 500g = $5 / 0.5kg = $10/kg.

Total price is misleading when package sizes differ. A 2kg bag for $10 ($5/kg) is better value than a 500g bag for $4 ($8/kg), even though $4 sounds cheaper. Price per kg normalizes for size, revealing the true cost.

Convert all weights to the same unit. This calculator converts to kg automatically. Manual conversion: 1000g = 1kg, 1lb = 0.454kg, 1oz = 0.0283kg. Then divide price by kg to compare.

No. Price per kg is cost by weight (best for bulk goods, produce, meat). Price per unit is cost per item (best for countable items like batteries or cans). Use the right metric for the product type.

Not always. The lowest price per kg is only better value if: (1) you'll use the full quantity, (2) quality is comparable, (3) it fits your storage, and (4) it won't spoil. A huge cheap pack you throw away half of is worse value than a smaller pack you use fully.

Not necessarily. While bulk often has lower price per kg, check for sales on smaller sizes, consider storage limits, and evaluate usage rate. A small pack on 50% off might beat the bulk price per kg.

Price per 100g is another way to show unit price, common in retail because it produces smaller numbers. To convert: multiply price per 100g by 10 to get price per kg. Example: $0.85/100g = $8.50/kg.

Divide the total price by the weight in kilograms. Formula: Price per kg = Total Price ÷ Weight (kg). Example: A 500g item for $3.50 → Convert 500g to 0.5kg → $3.50 ÷ 0.5 = $7.00 per kg. This lets you compare products of different sizes fairly.

Comparing unit prices reveals the best value when products come in different sizes. A large package may have a higher total price but lower price per kg, making it better value. A 1kg bag for $8 ($8/kg) is better value than a 500g bag for $5 ($10/kg), even though the smaller one costs less.

Convert all weights to the same unit before comparing. This calculator automatically converts grams, kilograms, pounds, and ounces to kilograms for fair comparison. 1 kg = 1000 g = 2.20462 lb = 35.274 oz. Always compare the calculated price per kg, not the original prices.

No. Price per kg measures cost by weight, while price per unit measures cost by item count. Use price per kg for bulk items sold by weight (rice, flour, meat). Use price per unit for discrete items (batteries, light bulbs). Some products like beverages can be compared either way.

Not always. The lowest price per kg is best value only if you'll use the entire quantity before expiration, have storage space, and the product quality is comparable. Buying a huge cheap bulk pack that spoils or you never finish wastes money despite the lower unit price.

Both are equally accurate for comparison. Price per 100g is often used in retail because it produces smaller, easier numbers (e.g., $0.80/100g vs $8.00/kg). Multiply price per 100g by 10 to get price per kg. This calculator shows price per kg as the standard comparison metric.