What is the weight of 1 cubic inch of water?

The weight of 1 cubic inch of water is approximately 0.036 pounds. This value is derived from the formula that relates the volume of water to its weight, where it is established that 1 cubic inch of water weighs around 0.0361 pounds at standard temperature and pressure. This means that when considering any calculations involving the weight of water in plumbing applications, knowing that 1 cubic inch weighs roughly 0.036 pounds is essential for accurate measurements and successful installations. Understanding this fundamental property helps plumbers in tasks like sizing pipes, calculating water delivery rates, and ensuring proper fittings, as even small weight measurements can significantly impact system performance.