Gigatonnes of CO₂ to gigatonnes of carbon
Type a value in GtCO₂ to get it in GtC instantly.
76.42GtC
Nothing on our list is smaller: the last ice age is 5.1× higher.
Convert the other way: GtC to GtCO₂
What it means
How much CO₂ is that?
Whole-atmosphere totals: 1 ppm = 2.124 GtC = 7.78 GtCO₂. About half of each year’s emissions stays in the air; oceans and land take the rest.
The math
How to convert GtCO₂ to GtC
To convert gigatonnes of CO₂ to gigatonnes of carbon, multiply by 0.272918.
Example: 280 GtCO₂ × 0.272918 = 76.4171 GtC.
In the other direction, 1 GtC = 3.6641 GtCO₂.
Every unit
That CO₂ in every unit
Tables
GtCO₂ to GtC conversion table
| GtCO₂ | GtC |
|---|---|
| 1 GtCO₂ | 0.272918 GtC |
| 2 GtCO₂ | 0.545837 GtC |
| 5 GtCO₂ | 1.36459 GtC |
| 10 GtCO₂ | 2.72918 GtC |
| 50 GtCO₂ | 13.6459 GtC |
| 100 GtCO₂ | 27.2918 GtC |
| 185 GtCO₂ | 50.4899 GtC |
| 280 GtCO₂ | 76.4171 GtC |
| 315 GtCO₂ | 85.9693 GtC |
| 350 GtCO₂ | 95.5214 GtC |
| 400 GtCO₂ | 109.167 GtC |
| 424 GtCO₂ | 115.717 GtC |
| 450 GtCO₂ | 122.813 GtC |
| 500 GtCO₂ | 136.459 GtC |
| 560 GtCO₂ | 152.834 GtC |
GtC to GtCO₂ conversion table
| GtC | GtCO₂ |
|---|---|
| 1 GtC | 3.6641 GtCO₂ |
| 2 GtC | 7.3282 GtCO₂ |
| 5 GtC | 18.3205 GtCO₂ |
| 10 GtC | 36.641 GtCO₂ |
| 50 GtC | 183.205 GtCO₂ |
| 100 GtC | 366.41 GtCO₂ |
| 185 GtC | 677.858 GtCO₂ |
| 280 GtC | 1,025.95 GtCO₂ |
| 315 GtC | 1,154.19 GtCO₂ |
| 350 GtC | 1,282.43 GtCO₂ |
| 400 GtC | 1,465.64 GtCO₂ |
| 424 GtC | 1,553.58 GtCO₂ |
| 450 GtC | 1,648.84 GtCO₂ |
| 500 GtC | 1,832.05 GtCO₂ |
| 560 GtC | 2,051.9 GtCO₂ |
Quick answers
Quick answers
- How many GtC is 1 GtCO₂?
- 1 GtCO₂ is 0.272918 GtC.
- How many GtC is 10 GtCO₂?
- 10 GtCO₂ is 2.72918 GtC.
- How many GtC is 280 GtCO₂?
- 280 GtCO₂ is 76.4171 GtC.
The units
About these units
Gigatonnes of CO₂ (GtCO₂)
Billions of tonnes of carbon dioxide.
Gigatonnes of carbon (GtC)
Billions of tonnes of carbon (PgC).
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