Square Inch to Square Meter Converter
Area · unit-converter
Convert Square Inch to Square Meter with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use square-meter-based definitions (international feet / yard standards, acre, hectare, and regional units like pyeong/tsubo).
Calculator
From: Square Inch (in2)
To: Square Meter (m2)
About Square Inch
The square inch is the area of a square one inch on a side. Displays, machining, and small parts often reference square inches.
About Square Meter
The square meter is the SI derived unit of area. Floor plans, building codes, and science typically use square meters.
How to convert square inches to square meters
1 square inch is equal to 0.00064516 square meter:
1 in2 = (0.00064516 m² ÷ 1 m²) m2 = 0.00064516 m2
Each square inch is defined as 0.00064516 m² and each square meter as 1 m², so one in2 equals 0.00064516 ÷ 1 m2 = 0.00064516 m2.
Let a(in2) be the numeric value of the same area measured in Square Inch (in2), and a(m2) the value in Square Meter (m2). Then:
a(m2) = a(in2) × (0.00064516 / 1)
Equivalently, divide by how many in2 fit into one m2 (m² per m2 divided by m² per in2):
a(m2) = a(in2) ÷ 1550.00310000620016
Or: square meter = square inch ÷ 1550.00310000620016
Examples
Example #1: Convert 20 in2 to square meter
20 in2 = 20 in2 × (0.00064516/1) m2 = 0.0129032 m2
20 in2 = 20 in2 ÷ 1550.00310000620016 = 0.0129032 m2
Example #2: Convert 50 in2 to square meter
50 in2 = 50 in2 × (0.00064516/1) m2 = 0.032258 m2
50 in2 = 50 in2 ÷ 1550.00310000620016 = 0.032258 m2
Summary
To convert Square Inch to Square Meter, multiply the value in in2 by the ratio of square meters per in2 divided by square meters per m2. Equivalently: value_m2 = value_in2 × (0.00064516 / 1). Numerically, 1 in2 equals 0.00064516 m2.
Relationship context
You are converting between US customary / imperial (Square Inches) and metric (SI) (Square Meters). Metric area is decimal from the square meter; US/imperial units use feet, yards, miles, and acres tied to international feet (0.3048 m) and related definitions. The numeric factor used here is 6.451600e-4.
Conversion tables
| Square Inch (in2) | Square Meter (m2) |
|---|---|
| 0.1 | 0.000064516 |
| 1 | 0.00064516 |
| 2 | 0.00129032 |
| 3 | 0.00193548 |
| 4 | 0.00258064 |
| 5 | 0.0032258 |
| 6 | 0.00387096 |
| 7 | 0.00451612 |
| 8 | 0.00516128 |
| 9 | 0.00580644 |
| Square Inch (in2) | Square Meter (m2) |
|---|---|
| 10 | 0.0064516 |
| 20 | 0.0129032 |
| 30 | 0.0193548 |
| 40 | 0.0258064 |
| 50 | 0.032258 |
| 60 | 0.0387096 |
| 70 | 0.0451612 |
| 80 | 0.0516128 |
| 90 | 0.0580644 |
| 100 | 0.064516 |