Square Inches calculator
A square inch is the Imperial/US customary unit for area defined by a one-inch square. It converts directly to other Imperial and metric units via fixed ratios. Separately, the kanal is a South Asian land‑area unit (1 kanal = 605 yd² ≈ 505.857 m²) still used in parts of India and Pakistan for agrarian and real‑estate measurements.
What Is the Square Inch?
A square inch (symbol: in²) denotes the area of a square with each side measuring exactly one inch.
It is formally part of the Imperial and US customary systems and is commonly used in the United States, the United Kingdom, and related regions for small-scale area calculations.
The notation "sq in" or "in²" appears in technical drawings, specification sheets, and pressure units such as pounds per square inch (psi).
Unit Conversion
To facilitate interoperability between systems, the square inch has exact equivalences:
- 1 in² = 6.4516 cm²
- 1 in² = 0.00064516 m²
- 1 ft² = 144 in²
- 1 yd² = 1 296 in²
These relationships allow precise conversion for engineering, manufacturing, and construction tasks.
| Unit | 1 Square inches |
|---|---|
| Square feet | 0.00694444444 sq ft |
| Square yard | 0.000771604938 sq yd |
| Square meters | 0.00064516 sq mt |
| Square centimeters | 6.4516 sq cm |
| Hectare | 0.000000064516 ha |
| Cent | 0.00001594374675 cent |
