Weight and mass conversion calculators. Browse our free weight tools below — all calculators are instant, accurate, and require no sign-up.
Ounces to Grams Converter — Convert ounces to grams instantly. Free oz to g calculator using 1 oz = 28.3495 g. Ideal for cooking, postage, jewelry, and lab measurements.
Pounds to Kilograms Converter — Convert pounds to kilograms instantly. Free lb to kg calculator using the exact factor 0.453592. Perfect for body weight, shipping, and cooking.
Stones to Pounds Converter — Convert stones to pounds and kilograms instantly. 1 stone = 14 pounds. Free converter for body weight with UK, US, and metric results.
Weight Converter — Convert between pounds, kilograms, ounces, grams, stones, and metric tonnes. Free online weight and mass unit converter for any purpose.