Have you ever wondered **how much does 5 gallons of water weigh?** Let’s satisfy that curiosity together. In this post, we’ll explore the weight of this standard liquid, and you’ll walk away with a fun fact to share with friends and family!

**What is the weight of water?**

You might be surprised that water’s weight depends on temperature, impurities (like salts or minerals), and altitude (above sea level).

**Temperature:** The weight of the water can change with temperature. As the water gets warmer, it expands and becomes less dense, which means it weighs slightly less. Water contracts and becomes denser when colder, making it weigh slightly more.

**Impurities:** Dissolved substances like salts and minerals can affect water’s weight. Seawater has a higher salt content than freshwater, making it denser and heavier. The presence of other impurities, such as minerals or contaminants, can also influence water’s weight.

**Altitude:** The weight of water can be affected by altitude or height above sea level. The air pressure is lower at higher altitudes, and gravity’s effect on water is slightly weaker. This causes water to weigh less than at lower altitudes with stronger air pressure and gravity. However, the difference is usually minimal and often negligible.

**How much does 5 gallons of water weigh?**

In the US, a 5-gallon container of water weighs approximately 41.7 pounds (lbs), as one US gallon of water weighs about 8.34 lbs. In the UK, a 5-imperial-gallon container of water weighs around 50 pounds (lbs) since one imperial gallon weighs approximately 10 lbs. Internationally, a 20-liter container of water (close to 5.3 US gallons) weighs about 44 pounds (20 kg), as one liter of water weighs 1 kg.

**How many pounds are 5 gallons of water?**

Five gallons of water weigh approximately 41.7 pounds. This is calculated by multiplying the weight of one US gallon of water, which is about 8.34 pounds, by 5.

**How much do 5 gallons of water weigh in kilos?**

Five gallons of water weigh approximately 18.9 kilograms. This is calculated by multiplying the weight of one US gallon of water, about 3.78 kilograms, by 5.

**How much do 5 gallons of water weigh in stones?**

Five gallons of water weigh approximately 2.98 stones. This is calculated by multiplying the weight of one US gallon of water, about 8.34 pounds, by 5 and then converting the total weight (41.7 pounds) into stones. There are 14 pounds in a stone, so 41.7 pounds is equivalent to 2.98 stones.

**How much do 5 gallons of water weigh when freezing?**

When water freezes, it expands and becomes less dense, so a 5-gallon container of ice weighs slightly less than a 5-gallon container of liquid water. One gallon of liquid water weighs about 8.34 pounds (3.78 kg), and the density of ice is approximately 0.92 times that of liquid water. Therefore, one gallon of ice weighs around 7.67 pounds (3.48 kg). For a 5-gallon container of ice, the weight would be approximately 38.35 pounds (17.4 kg).

US GALLONS AT ROOM TEMPERATURE (21°C) | |||

Gallons of water | Pounds | Stones | Kilos |

1 gallon | 8.33 lb | 0.6 | 3.78 kg |

2 gallons | 16.66 lb | 1.19 | 7.56 kg |

3 gallons | 24.99 lb | 1.79 | 11.33 kg |

4 gallons | 33.32 lb | 2.38 | 15.11 kg |

5 gallons | 41.64 lb | 2.97 | 18.89 kg |

6 gallons | 49.97 lb | 3.57 | 22.67 kg |

7 gallons | 58.3 lb | 4.16 | 26.45 kg |

8 gallons | 66.63 lb | 4.76 | 30.22 kg |

9 gallons | 74.96 lb | 5.35 | 34 kg |

10 gallons | 83.29 lb | 5.95 | 37.78 kg |

15 gallons | 124.933 lb | 8.92 | 56.67 kg |

20 gallons | 166.578 lb | 11.83 | 75.56 kg |

29 gallons | 241.538 lb | 17.25 | 109.56 kg |

30 gallons | 249.866 lb | 17.85 | 113.34 kg |

40 gallons | 333.155 lb | 23.8 | 151.12 kg |

50 gallons | 416.444 lb | 29.75 | 188.90 kg |

60 gallons | 499.733 lb | 35.7 | 226.67 kg |

100 gallons | 832.888 lb | 59.49 | 377.79 kg |

120 gallons | 999.466 lb | 71.39 | 453.35 kg |

150 gallons | 1249.332 lb | 89.24 | 566.69 kg |

**Frequently Asked Questions:**

**How much does a gallon of water weigh?**

A gallon of water weighs approximately 8.34 pounds (3.78 kilograms). This weight is based on the density of water at standard temperature and pressure and can vary slightly depending on factors such as temperature and impurities.

**How much does a gallon of water weigh frozen?**

When water freezes, it expands and becomes less dense. One gallon of frozen water (ice) weighs slightly less than a gallon of liquid water. A gallon of liquid water weighs about 8.34 pounds (3.78 kg). Since the density of ice is about 0.92 times that of liquid water, a gallon of ice would weigh approximately 7.67 pounds (3.48 kg).

**How much does a gallon of saltwater weigh?**

Due to the dissolved salts, a gallon of saltwater weighs more than a gallon of fresh water. The exact weight depends on the water’s salinity (salt concentration). Seawater has a salinity of about 35 grams of salt per liter (or 3.5% salt by weight). Considering this, one US gallon (3.785 liters) of seawater would weigh around 8.556 pounds (3.878 kg). However, this can vary slightly with different levels of salinity.

**How much does a half gallon of water weigh?**

To find the weight of a half-gallon of water, divide the weight of one gallon of water by two. One US gallon of water weighs approximately 8.34 pounds (lbs) or 3.78 kilograms (kg). Therefore, a half-gallon of water weighs about 4.17 pounds (lbs) or 1.89 kilograms (kg). This calculation assumes the water is freshwater; the weight would differ slightly for saltwater or other liquids.

**How much does a 5-gallon bottle of water weigh?**

The weight of a 5-gallon bottle of water can vary depending on the bottle’s material. Still, for standard plastic bottles, the weight of the empty container is typically around 0.8-1.5 pounds (0.36-0.68 kilograms). When filled with water, 5 gallons would weigh approximately 41.7 pounds (18.9 kilograms). Therefore, the total weight of a 5-gallon bottle of water would be around 42.5-43.2 pounds (19.3-19.6 kilograms), depending on the weight of the empty bottle.

**How much does a 5-gallon bucket of water weigh?**

The weight of a 5-gallon bucket of water depends on the water’s temperature and composition, whether freshwater or saltwater. Generally, one US gallon of freshwater weighs about 8.34 pounds (3.78 kilograms). Therefore, a 5-gallon bucket of freshwater would weigh approximately 41.7 pounds (18.9 kilograms).

**How much does a 55-gallon drum of water weigh?**

To find the weight of a 55-gallon drum, multiply the weight of one gallon of water by 55. One US gallon of water weighs approximately 8.34 pounds (lbs). Therefore, a 55-gallon drum of water would weigh about 458.7 pounds (lbs) or 207.9 kilograms (kg). This calculation assumes the drum contains freshwater. The weight would differ slightly for saltwater or other liquids.

**How much does a 5-gallon jug of water weigh?**

The weight of a 5-gallon jug of water depends on the material of the jug, but for standard plastic jugs, the weight of the empty container is typically around 0.8-1.5 pounds (0.36-0.68 kilograms). When filled with water, 5 gallons would weigh approximately 41.7 pounds (18.9 kilograms). Therefore, the total weight of a 5-gallon jug of water would be around 42.5-43.2 pounds (19.3-19.6 kilograms), depending on the weight of the empty jug.

**How much does 100 gallons of water weigh?**

To find the weight of 100 gallons of water, multiply the weight of one gallon of water by 100. One US gallon of water weighs approximately 8.34 pounds (lbs) or 3.78 kilograms (kg). Therefore, 100 gallons of water weigh about 834 pounds (lbs) or 378 kilograms (kg). This calculation assumes the water is freshwater. The weight would differ slightly for saltwater or other liquids.

**How much does a thousand gallons of water weigh?**

To find the weight of 1,000 gallons of water, multiply the weight of one gallon by 1,000. One US gallon of water weighs approximately 8.34 pounds (lbs) or 3.78 kilograms (kg). Therefore, 1,000 gallons of water weigh about 8,340 pounds (lbs) or 3,780 kilograms (kg). This calculation assumes the water is freshwater; the weight would differ slightly for saltwater or other liquids.

**Conclusion:**

In conclusion, understanding the weight of a 5-gallon container of water can be helpful in various situations. For liquid water, it weighs approximately 41.7 pounds (18.9 kg). However, when frozen, the weight slightly decreases to around 38.35 pounds (17.4 kg). Remember that these values can vary slightly based on temperature and water composition. Equipped with this knowledge, you’ll be better prepared to tackle tasks involving water weight for daily use or a specific project.