Quick reference table
Common area density conversions
| From | To |
|---|---|
| 1 oz/yd² | 33.90574747 g/m² |
| 1 g/m² | 0.02949352468 oz/yd² |
| 1 lb/ac | 1.120851156 kg/ha |
| 1 kg/ha | 0.8921791216 lb/ac |
| 1 g/m² | 0.001 kg/m² |
| 1 lb/ft² | 4.882427636 kg/m² |
How to convert area density
Area density is mass per unit of surface. Paper and fabric are sold by grams per square meter (gsm), carpets and textiles by ounces per square yard, and fertilizer by kilograms per hectare.
Every area density unit is a fixed multiple of one base unit, the kg/m². To convert a value, multiply it by the size of the starting unit and divide by the size of the target unit. For example, to convert oz/yd² to g/m², multiply by 33.90574747. To go the other way, divide by 33.90574747.
The converter above does this for you and shows the exact formula under the result.
Worked examples
Ounces per square yard to Grams per square meter (gsm)
| Ounces per square yard (oz/yd²) | Grams per square meter (gsm) (g/m²) |
|---|---|
| 1 oz/yd² | 33.90574747 g/m² |
| 2 oz/yd² | 67.81149495 g/m² |
| 5 oz/yd² | 169.5287374 g/m² |
| 10 oz/yd² | 339.0574747 g/m² |
| 25 oz/yd² | 847.6436869 g/m² |
| 50 oz/yd² | 1,695.287374 g/m² |
| 100 oz/yd² | 3,390.574747 g/m² |
| 1,000 oz/yd² | 33,905.74747 g/m² |
Grams per square meter (gsm) to Ounces per square yard
| Grams per square meter (gsm) (g/m²) | Ounces per square yard (oz/yd²) |
|---|---|
| 1 g/m² | 0.02949352468 oz/yd² |
| 2 g/m² | 0.05898704936 oz/yd² |
| 5 g/m² | 0.1474676234 oz/yd² |
| 10 g/m² | 0.2949352468 oz/yd² |
| 25 g/m² | 0.7373381170 oz/yd² |
| 50 g/m² | 1.474676234 oz/yd² |
| 100 g/m² | 2.949352468 oz/yd² |
| 1,000 g/m² | 29.49352468 oz/yd² |
Area density units explained
| Unit | Symbol | Equals |
|---|---|---|
| Kilograms per square meter | kg/m² | 1 kg/m² = 1 kg/m² |
| Grams per square meter (gsm) | g/m² | 1 g/m² = 0.001 kg/m² |
| Milligrams per square centimeter | mg/cm² | 1 mg/cm² = 0.01 kg/m² |
| Grams per square centimeter | g/cm² | 1 g/cm² = 10 kg/m² |
| Kilograms per square centimeter | kg/cm² | 1 kg/cm² = 10,000 kg/m² |
| Metric tons per hectare | t/ha | 1 t/ha = 0.1 kg/m² |
| Kilograms per hectare | kg/ha | 1 kg/ha = 0.0001 kg/m² |
| Pounds per square foot | lb/ft² | 1 lb/ft² = 4.88242763638 kg/m² |
| Pounds per square inch (mass) | lb/in² | 1 lb/in² = 703.069579639 kg/m² |
| Ounces per square foot | oz/ft² | 1 oz/ft² = 0.305151727274 kg/m² |
| Ounces per square yard | oz/yd² | 1 oz/yd² = 0.0339057474749 kg/m² |
| Pounds per acre | lb/ac | 1 lb/ac = 0.000112085115619 kg/m² |
Popular conversions: gsm to oz/yd2, lb/acre to kg/ha, g/m2 conversion.
Frequently asked questions
What is gsm?
GSM means grams per square meter. Standard copy paper is about 80 gsm, and 300 gsm paper is thick card.
How many gsm is 1 oz/yd²?
One ounce per square yard is about 33.9 gsm.
How do I convert oz/yd² to g/m²?
Multiply the value in oz/yd² by 33.90574747 to get g/m². For example, 10 oz/yd² = 339.0574747 g/m².
How many g/m² is 1 oz/yd²?
1 oz/yd² = 33.90574747 g/m², and 1 g/m² = 0.02949352468 oz/yd².
Does this area density converter work offline?
Yes. After the page has loaded once, all calculations run in your browser, so it keeps working without an internet connection.