Unit price is the cost per single unit of measurement (per ounce, per item, etc.). It matters because it lets you compare products of different sizes fairly. Without unit price, a $5 bottle might seem cheaper than a $7 bottle, but the $7 bottle might contain twice as much—making it the better value.

Divide the total price by the quantity. Example: $6.00 ÷ 32 oz = $0.1875 per oz. Most stores display unit prices on shelf tags, but you can calculate it yourself for comparison shopping.

Usually, but not always! Sometimes smaller sizes are on sale, or the "bulk" option is actually priced higher per unit. Always calculate to verify—don't assume bigger = cheaper.

Convert to the same unit first. Example: 1 lb = 16 oz, 1 L = 33.8 fl oz, 1 kg = 2.2 lb. Then calculate unit prices in the same measurement for fair comparison.

Not necessarily! Consider: Will you use it before expiry? Do you have storage space? Is the quality comparable? Is the upfront cost affordable? Cheaper per unit only saves money if you actually use the product.

Most US stores display unit prices on shelf labels (required by law in many states). Look for small text showing "$/oz" or "$/lb" near the product price. If not available, calculate it yourself.

Studies show smart unit price shopping can save 10-30% on groceries. On a $500/month grocery budget, that's $50-150/month or $600-1,800/year in savings!

Often yes! Store brands are typically 20-30% cheaper per unit than name brands, and many are made by the same manufacturers. Compare unit prices to verify.

Absolutely! Many online retailers show unit prices. If not, use this calculator. Be sure to account for shipping costs per unit—bulk shipping is often more economical.

Unit price doesn't account for quality. A $0.50/oz organic product may justify a premium over $0.30/oz conventional. Consider your priorities alongside price comparison.