Mass application rate.
Grams per Square Meter to Metric tons per Square Kilometer Converter — g/m2 to t/km2
Convert Gram per Square Meter (g/m2) to Metric ton per Square Kilometer (t/km2) using the exact conversion factor (1 gram per square meter = 1 metric ton per square kilometer). See the formula, worked examples, and conversion table.
Grams per Square Meter to Metric tons per Square Kilometer converter
Converter
Agriculture Converter
Convert acres, hectares, yield, seed, fertilizer, irrigation, and application-rate units.
Context values
Some unit families need one extra value for a physically accurate result.
Mass application rate.
Result = input x 0.001 / 0.001.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Square Meter to Metric tons per Square Kilometer
Gram per Square Meter and Metric ton per Square Kilometer both measure a farming-related quantity — a land area or an application/yield rate per unit area — used to report crop yields, calculate how much fertilizer or seed a field needs, and plan irrigation. Both are mass application rate units.
Formula
metric tons per square kilometer = grams per square meter × 1
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per square meter equals 0.001 base units, and 1 metric ton per square kilometer equals 0.001 base units, so dividing one by the other gives the direct gram per square meter-to-metric ton per square kilometer factor of 1.
Simple example
1 g/m2 × 1 = 1 t/km2
1 gram per square meter = 1 metric ton per square kilometer.
Real-world example
100 g/m2 × 1 = 100 t/km2
100 grams per square meter = 100 metric tons per square kilometer.
Conversion table
| Gram per Square Meter (g/m2) | Metric ton per Square Kilometer (t/km2) |
|---|---|
| 1 g/m2 | 1 t/km2 |
| 5 g/m2 | 5 t/km2 |
| 10 g/m2 | 10 t/km2 |
| 50 g/m2 | 50 t/km2 |
| 100 g/m2 | 100 t/km2 |
| 500 g/m2 | 500 t/km2 |
Reverse conversion: Metric ton per Square Kilometer to Gram per Square Meter
1 t/km2 × 1 = 1 g/m2
1 metric ton per square kilometer = 1 gram per square meter.
grams per square meter = metric tons per square kilometer × 1
For a page dedicated to this direction, see Metric ton per Square Kilometer to Gram per Square Meter.
Understanding the Gram per Square Meter (g/m2)
Mass application rate.
Understanding the Metric ton per Square Kilometer (t/km2)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric tons per square kilometer are in 1 gram per square meter?
1 gram per square meter equals 1 metric ton per square kilometer, using the exact defined conversion factor rather than an estimate.
How do I convert gram per square meter to metric ton per square kilometer?
Multiply the gram per square meter value by 1. The converter above does this instantly to whatever precision you set.
How do I convert metric ton per square kilometer back to gram per square meter?
Use the reverse factor: 1 metric ton per square kilometer equals 1 gram per square meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per square meter?
Gram per Square Meter (g/m2) is a unit of agriculture.
What is a metric ton per square kilometer?
Metric ton per Square Kilometer (t/km2) is a unit of agriculture.
Is the gram per square meter to metric ton per square kilometer conversion exact?
Yes. Both gram per square meter and metric ton per square kilometer are defined by fixed standards rather than physical artifacts, so the factor of 1 used above is exact to as many digits as you choose to display.
What's the difference between a yield rate and an application rate?
A yield rate describes how much of a crop is harvested per unit of land area (for example, tonnes per hectare). An application rate describes how much of an input like fertilizer or seed is applied per unit of land area. Both are commonly expressed using the same kind of mass-per-area units.