Mass application rate.
Grams per Square Kilometer to Kilograms per Square Meter Converter — g/km2 to kg/m2
Convert Gram per Square Kilometer (g/km2) to Kilogram per Square Meter (kg/m2) using the exact conversion factor (1 gram per square kilometer = 1e-9 kilogram per square meter). See the formula, worked examples, conversion table, and common uses.
Grams per Square Kilometer to Kilograms per Square Meter 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 1e-9 / 1.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Square Kilometer to Kilograms per Square Meter
Gram per Square Kilometer and Kilogram per Square Meter 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
kilograms per square meter = grams per square kilometer × 1e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per square kilometer equals 1e-9 base units, and 1 kilogram per square meter equals 1 base unit, so dividing one by the other gives the direct gram per square kilometer-to-kilogram per square meter factor of 1e-9.
Simple example
1 g/km2 × 1e-9 = 1e-9 kg/m2
1 gram per square kilometer = 1e-9 kilograms per square meter.
Real-world example
100 g/km2 × 1e-9 = 1e-7 kg/m2
100 grams per square kilometer = 1e-7 kilograms per square meter.
Conversion table
| Gram per Square Kilometer (g/km2) | Kilogram per Square Meter (kg/m2) |
|---|---|
| 1 g/km2 | 1e-9 kg/m2 |
| 5 g/km2 | 5e-9 kg/m2 |
| 10 g/km2 | 1e-8 kg/m2 |
| 50 g/km2 | 5e-8 kg/m2 |
| 100 g/km2 | 1e-7 kg/m2 |
| 500 g/km2 | 5e-7 kg/m2 |
Reverse conversion: Kilogram per Square Meter to Gram per Square Kilometer
1e-9 kg/m2 × 1000000000 = 1 g/km2
1e-9 kilograms per square meter = 1 gram per square kilometer.
grams per square kilometer = kilograms per square meter × 1000000000
For a page dedicated to this direction, see Kilogram per Square Meter to Gram per Square Kilometer.
Understanding the Gram per Square Kilometer (g/km2)
Mass application rate.
Understanding the Kilogram per Square Meter
Kilogram per Square Meter (kg/m2) measures agricultural application/yield rate, or areal density. A mathematically valid way to express an application rate or areal density in kilograms per square meter. It is classified as a metric derived rate unit.
Uses of the Kilogram per Square Meter today
- Can be used for application rates or areal density at small scale — for small-garden and turf applications, grams per square meter is the unit more commonly seen in practice, since kilograms per square meter represents a very heavy rate for typical garden or lawn use
Kilogram per Square Meter — sources
- Garden and turf-care application-rate references — Small-scale application rates are typically expressed in grams per square meter rather than kilograms per square meter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per square meter are in 1 gram per square kilometer?
1 gram per square kilometer equals 1e-9 kilograms per square meter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per square kilometer to kilogram per square meter?
Multiply the gram per square kilometer value by 1e-9. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per square meter back to gram per square kilometer?
Use the reverse factor: 1 kilogram per square meter equals 1,000,000,000 grams per square kilometer. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per square kilometer?
Gram per Square Kilometer (g/km2) is a unit of agriculture.
What is a kilogram per square meter?
Kilogram per Square Meter (kg/m2) measures agricultural application/yield rate, or areal density. A mathematically valid way to express an application rate or areal density in kilograms per square meter. It is classified as a metric derived rate unit.
Is the gram per square kilometer to kilogram per square meter conversion exact?
Yes. Both gram per square kilometer and kilogram per square meter are defined by fixed standards rather than physical artifacts, so the factor of 1e-9 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.