Square Inch to Square Meter Conversion Calculator: Free Online Tool

Convert square inches to square meters with our free online area converter.

From:

in²

Square Inch

To:

m²

Square Meter

How to Use the Calculator:

Enter the value you want to convert in the 'From' field (Square Inch).
The converted value in Square Meter will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Area category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Square Inch to Square Meter

Converting Square Inch to Square Meter involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Square Inch = 0.00064516 square meters

Example Calculation:

Convert 10 square inches: 10 × 0.00064516 = 0.0064516 square meters

Note: Conversion factors can sometimes be rounded for display purposes. For precise calculations, always use the full factor or rely on the calculator above.

What is a Square Inch and a Square Meter?

The square inch (symbol: in², sq in) is an imperial and US customary unit of area. It represents the area of a square with sides that are each one inch long.

The square meter (symbol: m²) is the SI derived unit of area. It represents the area of a square with sides that are each one meter long.

Note: The Square Inch is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Square Meter belongs to the metric (SI) system.

History of the Square Inch and Square Meter

Derived from the inch, whose definition has varied historically but was standardized as 25.4 mm, the square inch became a common unit for small area measurements within the imperial system. It is frequently used in the US and UK for engineering and everyday measurements.

Derived directly from the meter, which was defined during the French Revolution, the square meter became the standard unit of area within the International System of Units (SI) established in 1960. Its adoption provided a consistent, universally accepted measure for scientific, technical, and everyday area calculations.

Common Uses for square inches and square meters

Explore the typical applications for both Square Inch (imperial/US) and Square Meter (metric) to understand their common contexts.

Common Uses for square inches

Engineering & Manufacturing (US/UK): Specifying the area of small components, cross-sections, or surface areas.
Material Measurement: Measuring the area of small sheets of material (e.g., paper, fabric samples).
Pressure Measurement: Used implicitly in units like pounds per square inch (psi).
Crafts & Hobbies: Measuring fabric squares, paper sizes, or small design areas.

Common Uses for square meters

Real Estate & Construction (Metric): Standard unit for measuring floor space in buildings, room sizes, and land parcels in countries using the metric system.
Science & Engineering: Used extensively in physics (e.g., calculating pressure = force/area), material science, and various engineering fields for surface area calculations.
Textiles & Manufacturing: Measuring the area of fabrics, paper, or other sheet materials.
Gardening & Landscaping: Estimating the area for planting, paving, or turfing small to medium-sized plots.

Frequently Asked Questions

Questions About Square Inch (in²)

How many square inches are in a square foot?

There are 144 square inches in one square foot (12 inches x 12 inches).

How many square centimeters are in a square inch?

One square inch is equal to exactly 6.4516 square centimeters.

Is the square inch used for large areas?

No, it's used for small areas. Square feet (ft²) or square yards (yd²) are used for room sizes, and acres (ac) or square miles (mi²) for land.

Is the square inch an SI unit?

No, it is part of the imperial and US customary systems. The corresponding metric units are square centimeter (cm²) or square millimeter (mm²).

About Square Meter (m²)

What is the base SI unit for area?

The square meter (m²) is the SI derived unit for area.

How big is a square meter?

It's the area of a square where each side is exactly one meter long. Imagine a square roughly the size of a large beach towel.

How many square feet are in a square meter?

One square meter is approximately 10.764 square feet.

Is the square meter used worldwide?

Yes, it is the standard unit of area in the vast majority of countries that use the metric system and is the standard in science and engineering globally.

Conversion Table: Square Inch to Square Meter

Square Inch (in²)	Square Meter (m²)
1	0.001
5	0.003
10	0.007
25	0.016
50	0.032
100	0.065
500	0.323
1,000	0.645

All Area Conversions

Square Meter to Square Kilometer Square Meter to Square Centimeter Square Meter to Square Millimeter Square Meter to Square Inch Square Meter to Square Foot Square Meter to Square Yard Square Meter to Square Mile Square Meter to Acre Square Meter to Hectare Square Kilometer to Square Meter Square Kilometer to Square Centimeter Square Kilometer to Square Millimeter Square Kilometer to Square Inch Square Kilometer to Square Foot Square Kilometer to Square Yard Square Kilometer to Square Mile Square Kilometer to Acre Square Kilometer to Hectare Square Centimeter to Square Meter Square Centimeter to Square Kilometer Square Centimeter to Square Millimeter Square Centimeter to Square Inch Square Centimeter to Square Foot Square Centimeter to Square Yard Square Centimeter to Square Mile Square Centimeter to Acre Square Centimeter to Hectare Square Millimeter to Square Meter Square Millimeter to Square Kilometer Square Millimeter to Square Centimeter Square Millimeter to Square Inch Square Millimeter to Square Foot Square Millimeter to Square Yard Square Millimeter to Square Mile Square Millimeter to Acre Square Millimeter to Hectare Square Inch to Square Kilometer Square Inch to Square Centimeter Square Inch to Square Millimeter Square Inch to Square Foot Square Inch to Square Yard Square Inch to Square Mile Square Inch to Acre Square Inch to Hectare Square Foot to Square Meter Square Foot to Square Kilometer Square Foot to Square Centimeter Square Foot to Square Millimeter Square Foot to Square Inch Square Foot to Square Yard Square Foot to Square Mile Square Foot to Acre Square Foot to Hectare Square Yard to Square Meter Square Yard to Square Kilometer Square Yard to Square Centimeter Square Yard to Square Millimeter Square Yard to Square Inch Square Yard to Square Foot Square Yard to Square Mile Square Yard to Acre Square Yard to Hectare Square Mile to Square Meter Square Mile to Square Kilometer Square Mile to Square Centimeter Square Mile to Square Millimeter Square Mile to Square Inch Square Mile to Square Foot Square Mile to Square Yard Square Mile to Acre Square Mile to Hectare Acre to Square Meter Acre to Square Kilometer Acre to Square Centimeter Acre to Square Millimeter Acre to Square Inch Acre to Square Foot Acre to Square Yard Acre to Square Mile Acre to Hectare Hectare to Square Meter Hectare to Square Kilometer Hectare to Square Centimeter Hectare to Square Millimeter Hectare to Square Inch Hectare to Square Foot Hectare to Square Yard Hectare to Square Mile Hectare to Acre