Volume conversion calculator that shows work to measure the space in gallon, pint, quart, ounce, cubic-meter, liter and milliliter. The step-by-step calculation help parents to assist their kids studying 4th, 5th or 6th grade to verify the work and answers of volume conversion homework and assignment problems in pre-algebra or in measurement and data (MD) of common core state standards (CCSS) for mathematics.