| tonne | 1 t | 2 t | 3 t | 4 t | 5 t | 6 t | 7 t | 8 t | 9 t | 10 t | 11 t | 12 t | 13 t | 14 t | 15 t | 16 t | 17 t | 18 t | 19 t | 20 t | 21 t | 22 t | 23 t | 24 t | 25 t | 26 t | 27 t | 28 t | 29 t | 30 t | 31 t | 32 t | 33 t | 34 t | 35 t | 36 t | 37 t | 38 t | 39 t | 40 t | 41 t | 42 t | 43 t | 44 t | 45 t | 46 t | 47 t | 48 t | 49 t | 50 t | 51 t | 52 t | 53 t | 54 t | 55 t | 56 t | 57 t | 58 t | 59 t | 60 t | 61 t | 62 t | 63 t | 64 t | 65 t | 66 t | 67 t | 68 t | 69 t | 70 t | 71 t | 72 t | 73 t | 74 t | 75 t | 76 t | 77 t | 78 t | 79 t | 80 t | 81 t | 82 t | 83 t | 84 t | 85 t | 86 t | 87 t | 88 t | 89 t | 90 t | 91 t | 92 t | 93 t | 94 t | 95 t | 96 t | 97 t | 98 t | 99 t | 100 t |
| gigagram | 0.001 Gg | 0.002 Gg | 0.003 Gg | 0.004 Gg | 0.005 Gg | 0.006 Gg | 0.007 Gg | 0.008 Gg | 0.009 Gg | 0.01 Gg | 0.011 Gg | 0.012 Gg | 0.013 Gg | 0.014 Gg | 0.015 Gg | 0.016 Gg | 0.017 Gg | 0.018 Gg | 0.019 Gg | 0.02 Gg | 0.021 Gg | 0.022 Gg | 0.023 Gg | 0.024 Gg | 0.025 Gg | 0.026 Gg | 0.027 Gg | 0.028 Gg | 0.029 Gg | 0.03 Gg | 0.031 Gg | 0.032 Gg | 0.033 Gg | 0.034 Gg | 0.035 Gg | 0.036 Gg | 0.037 Gg | 0.038 Gg | 0.039 Gg | 0.04 Gg | 0.041 Gg | 0.042 Gg | 0.043 Gg | 0.044 Gg | 0.045 Gg | 0.046 Gg | 0.047 Gg | 0.048 Gg | 0.049 Gg | 0.05 Gg | 0.051 Gg | 0.052 Gg | 0.053 Gg | 0.054 Gg | 0.055 Gg | 0.056 Gg | 0.057 Gg | 0.058 Gg | 0.059 Gg | 0.06 Gg | 0.061 Gg | 0.062 Gg | 0.063 Gg | 0.064 Gg | 0.065 Gg | 0.066 Gg | 0.067 Gg | 0.068 Gg | 0.069 Gg | 0.07 Gg | 0.071 Gg | 0.072 Gg | 0.073 Gg | 0.074 Gg | 0.075 Gg | 0.076 Gg | 0.077 Gg | 0.078 Gg | 0.079 Gg | 0.08 Gg | 0.081 Gg | 0.082 Gg | 0.083 Gg | 0.084 Gg | 0.085 Gg | 0.086 Gg | 0.087 Gg | 0.088 Gg | 0.089 Gg | 0.09 Gg | 0.091 Gg | 0.092 Gg | 0.093 Gg | 0.094 Gg | 0.095 Gg | 0.096 Gg | 0.097 Gg | 0.098 Gg | 0.099 Gg | 0.1 Gg |
The tonne (non-preferred SI derived unit; SI symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms; or one megagram (Mg); it is equivalent to approximately 2,204.6 pounds, 1.10 short tons (US) or 0.984 long tons (imperial). Although not part of the SI per se, the tonne is "accepted for use with" SI units and prefixes by the International Committee for Weights and Measures, along with several other units like the bar, litre and day.
| 1 tonnes ≡ 0.001 gigagrams | 11 tonnes ≡ 0.011 gigagrams |
| 2.5 tonnes ≡ 0.0025 gigagrams | 12.5 tonnes ≡ 0.0125 gigagrams |
| 4 tonnes ≡ 0.004 gigagrams | 14 tonnes ≡ 0.014 gigagrams |
| 5.5 tonnes ≡ 0.0055 gigagrams | 15.5 tonnes ≡ 0.0155 gigagrams |
| 7 tonnes ≡ 0.007 gigagrams | 17 tonnes ≡ 0.017 gigagrams |
| 8.5 tonnes ≡ 0.0085 gigagrams | 18.5 tonnes ≡ 0.0185 gigagrams |
| 10 tonnes ≡ 0.01 gigagrams | 20 tonnes ≡ 0.02 gigagrams |
Gigagram or gigagramme is equal to 109 gram (unit of mass), comes from a combination of the metric prefix giga (G) with the gram (g). Plural name is gigagrams.
| 1 gigagrams ≡ 1000 tonnes | 11 gigagrams ≡ 11000 tonnes |
| 2.5 gigagrams ≡ 2500 tonnes | 12.5 gigagrams ≡ 12500 tonnes |
| 4 gigagrams ≡ 4000 tonnes | 14 gigagrams ≡ 14000 tonnes |
| 5.5 gigagrams ≡ 5500 tonnes | 15.5 gigagrams ≡ 15500 tonnes |
| 7 gigagrams ≡ 7000 tonnes | 17 gigagrams ≡ 17000 tonnes |
| 8.5 gigagrams ≡ 8500 tonnes | 18.5 gigagrams ≡ 18500 tonnes |
| 10 gigagrams ≡ 10000 tonnes | 20 gigagrams ≡ 20000 tonnes |
| 1 tonnes ≡ 0.001 gigagrams |
| 1 gigagrams ≡ 1 000 tonnes |