Unit Price Calculator - Compare Price Per Unit Online
Compare up to 4 items by price per unit to find the best value — supports oz, g, kg, lb, ml, L, and count.
How to use this calculator
👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉
In plain English — what does this do?
📊 A helper for daily life! Things like working out your age, how much to tip, what a sale price is, or how long until your birthday. Quick and easy answers for real life!
A unit price calculator converts different package sizes and units into a common price-per-unit so you can instantly spot which item offers the best value. It supports weight (oz, g, kg, lb), volume (ml, L), and count units, normalising everything to a common base for an apples-to-apples comparison.
What is Unit Price Calculator - Compare Price Per Unit Online?
A unit price calculator converts different package sizes and units into a common price-per-unit so you can instantly spot which item offers the best value. It supports weight (oz, g, kg, lb), volume (ml, L), and count units, normalising everything to a common base for an apples-to-apples comparison.
How to use it
- 1️⃣ Enter a name, price, quantity, and unit for each item you want to compare.
- 2️⃣ You can compare up to 4 items at once.
- 3️⃣ The calculator converts all items to the same base unit and highlights the best value in green.
Formula
💡 See it in action — a real example
❓ Common questions
- What base units are used for comparison?
- Weight items compare per gram, volume items per milliliter, and count items per unit. The displayed price per unit is shown in the original unit for readability.
- Can I compare items with different unit types?
- No — you can only compare items within the same unit category (weight vs. weight, volume vs. volume). Mixing types would produce meaningless comparisons.
- What if two items have the same unit price?
- Both are highlighted as equally good value.