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Enter values then press Calculate to see price per area and helpful breakdowns.
Understanding price per area
Price by area reveals true value when sizes differ across brands or materials This calculator normalizes costs by surface area and shows you the most economical choice for packaging labels tiles or food trays helping buyers avoid misleading size presentations
Flexible inputs and units
Enter width and height for rectangles or diameter for circles or base and height for triangles Select units in inches or centimeters and the tool handles conversions automatically delivering consistent square inch results so comparisons remain fair and transparent
Taxes and discounts
Real world prices often include taxes or temporary discounts You can add a tax rate and a discount rate and the calculator computes effective price per square inch This makes budgets precise and supports better vendor negotiations
Where this helps
Use this tool to evaluate posters countertops food portions flooring sheets and other products where area drives cost Enter several options compare results and select the best value while documenting your decision for future purchases quality checks or audits
How to use this calculator
- Enter the price of one item and set the quantity if buying multiples.
- Choose the shape and provide dimensions. Pick inches or centimeters.
- Optionally add a discount rate and a tax rate to reflect real totals.
- Click Calculate to see area, effective price, and price per square inch and per square foot.
- Compare multiple items by changing inputs and noting the lowest cost per area.
Formula explained
Area formulas:
Rectangle = width × height;
Circle = π × (diameter ÷ 2)2;
Triangle = 0.5 × base × height.
Effective price = (price × quantity) reduced by discount then increased by tax:
After discount = price × quantity × (1 − discount%);
Effective price = After discount × (1 + tax%).
Price per square inch = Effective price ÷ Area.
Price per square foot uses the same numerator but divides by (Area ÷ 144).
FAQs
1. What if my item is oval or irregular?
Approximate with a rectangle or circle that closely matches the footprint or split the shape into parts and sum the areas.
2. Does the tool support centimeters?
Yes. Enter dimensions in centimeters and the calculator converts to square inches automatically.
3. How is discount applied?
Discount is applied first to the subtotal then tax is applied to the discounted amount.
4. Can I compare multiple products?
Yes. Run the calculation for each product and record the price per square inch to identify the best value.
5. What precision do you use?
Areas are shown to four decimals and currency to two decimals for a clear view; adjust as needed.
6. Does thickness matter?
This calculator focuses on surface cost. If thickness affects value add it as a note for context.
7. How do I include shipping?
Add shipping to the item price before calculating to fold it into the effective price.
8. How do I handle packs with different sizes?
Compute each item size and area separately then multiply by quantity to aggregate totals for a fair comparison.