Unit Converter

How the Unit Converter Works

This converter changes a weight measurement between ounces, pounds, grams, and kilograms. Enter the amount, choose the starting unit, and the page displays all four conversions automatically.

The calculator first converts the entered value to grams, then uses that common base to calculate the equivalent amount in the other units.

Why Weight Units Matter in Pool Care

Pool chemical labels may use ounces, pounds, grams, or kilograms depending on the product and country. Converting accurately helps prevent underdosing, overdosing, and confusion when comparing product instructions.

This page converts weight only. It does not convert fluid ounces, cups, quarts, gallons, or liters.

Common Pool Uses

• Converting pounds of calcium hardness increaser to ounces.
• Changing grams of stabilizer to pounds.
• Comparing metric and U.S. product labels.
• Measuring small doses of granular chemicals.
• Checking package sizes before purchasing chemicals.

Common Unit Conversion Mistakes

• Confusing weight ounces with fluid ounces.
• Using a kitchen volume cup for a chemical sold by weight.
• Rounding too early in a small-dose calculation.
• Mixing pounds and kilograms without converting first.
• Assuming all granular products have the same density.

Frequently Asked Questions

Is one fluid ounce the same as one ounce by weight?

No. A fluid ounce measures volume, while an ounce measures weight. The two are not interchangeable.

How many ounces are in one pound?

There are 16 ounces by weight in one pound.

How many grams are in one ounce?

One ounce equals approximately 28.35 grams.

Can I use this for liquid chlorine?

Not for liquid volume. Use a fluid-volume converter for gallons, quarts, fluid ounces, liters, or milliliters.