Unit Rate Calculator: Find the Best Deal

Use this unit rate calculator to compare prices fast. Enter price and quantity for two items. See price per unit and the better deal.

What Is the Unit Rate Calculator?

A unit rate shows cost for one unit. Think price per ounce or price per liter. This calculator computes price per unit for two items. It then compares them side by side. You see which option costs less per unit.

How to Use This Tool

Step 1: Enter Your Values

Start with your first item. Type the price and the quantity. Pick a unit if it helps clarity.

• Item 1 Price: Enter the total price in dollars, for example 4.99.
• Item 1 Quantity: Enter the amount or count, for example 12 or 2.5.
• Item 1 Unit: Choose a unit from the list, like ounces or liters.
• Item 2 Price: Enter the total price in dollars.
• Item 2 Quantity: Enter the amount or count.
• Item 2 Unit: Pick the same unit as Item 1 for a fair match.

Step 2: Calculate the Rates

Click Calculate Unit Rates to run the math. You can also press Enter.

Use Clear to reset every field.

Enter numbers in all fields. Prices stay above zero. Quantities stay greater than zero.

Step 3: Read Your Results

You will see unit rates for both items. Each rate shows dollars per unit for the chosen unit.

Rates round to three decimals. The lower rate gives the better deal.

The results show the percent gap and savings per unit. The percent uses the higher rate as the base. The calculator treats rates as equal when the gap falls under 0.001.

Notes and limits

• Use the same unit on both items for a true comparison.
• Convert units yourself before entry when units differ.
• Units act as labels in the results.
• Small rounding can hide tiny gaps between rates.
• Selecting a unit is optional.
• Press Enter to calculate, or use the button.

Examples

• Grocery: Compare a 12 ounce cereal for 3.99 dollars and an 18 ounce box for 5.49 dollars.
• Bulk coffee: Compare 1 pound for 8.99 dollars and 2.5 pounds for 19.99 dollars.
• Fuel: Compare 10 gallons for 35.90 dollars and 15 gallons for 53.25 dollars.

Why This Calculator Stands Out

Speed and Simplicity

The unit rate calculator gives fast feedback in your browser. Type values and see results right away. Clear text guides each step.

Every User Wins

Shoppers compare brands and sizes with less effort. Students check math homework. Small teams review bids and quotes with clean math.

The Bottom Line

Use this unit rate calculator before you buy. Enter price and quantity for two options. Select units and hit Calculate Unit Rates. Read the rates and pick the better deal with confidence.

Quick math. Clear output. Smart choices for your budget.