Pizza Size and Value Calculator
Compare pizza sizes by area to find the best deal. A larger diameter means much more pizza than it looks.
🍕 Cooking📐 Pizza Area = 3.14 x radius squared
Pizza 1 diameter (inches)
Pizza 1 price ($)
Compare pizza 2 diameter (inches)
Pizza 2 price ($)
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Pizza Size and Value Calculator | Pizza Area = 3.14 x radius squared | sq inches |
Step-by-Step Examples
Example 1
12 vs 16 inch
12in at $18 vs 16in at $24.
- 12in = 113 sq in at $0.159/sq in
- 16in = 201 sq in at $0.119/sq in
- 16in is 78% more pizza, 25% cheaper per sq in
✓ 16in is better value
Example 2
10 vs 14 inch
10in $12 vs 14in $20.
- 10in = 78.5 sq in
- 14in = 153.9 sq in
- 14in is better value per sq in
✓ 14in wins
Example 3
Size only comparison
12in vs 18in.
- 12in = 113 sq in
- 18in = 254 sq in = 2.25x more pizza
✓ 18in is 2.25x more pizza
Real-World Applications
Pizza Lovers
Know which size gives the most value.
Party Planners
Order the right number of pizzas for any group.
Home Cooks
Scale homemade pizza for different pan sizes.
Restaurants
Price pizzas fairly based on actual area.
Common Mistakes to Avoid
⚠️
Comparing by diameter alone
Area grows with square of radius. 16in pizza = 78% more area than 12in — not just 33% more.
⚠️
Topping distribution
Check whether toppings scale with size or stay constant.
Frequently Asked Questions
Pizzas for 10 people? ▾
3-4 large (8-slice) pizzas. At 2-3 slices per person.
Size for 2 people? ▾
12in is enough for 2. Get 14in if hungry.
Is bigger always better value? ▾
Almost always yes by price-per-sq-in.