Conversion tool map
Mass & weight
Metric, imperial, and specialized mass units.
Choose the tool whose inputs and output match your task. Check each calculator’s assumptions and limitations before using its result.
Decagram to gram converter
Convert decagrams to grams or grams to decagrams with the exact metric factor 1 dag = 10 g, plus food, classroom, and lab notation guidance.
Density Converter Calculator
Convert density among kilograms per cubic meter, grams per cubic centimeter, and pounds per cubic foot using definition-based factors.
Force Converter
Convert force among newtons, pound-force, and kilogram-force using the pound definition and standard gravity.
g to lbs Converter
Convert grams to pounds for food, nutrition, postage, and small package weights using the calculator's 1 lb = 453.59237 g factor.
Grams To Calories Calculator
Convert grams of protein, carbohydrate, and fat to food Calories using 4, 4, and 9 kcal per gram, or use a custom kcal per gram value.
kg to lbs Converter
Convert kilograms to pounds for body weight, gym plates, luggage, freight, and metric records using the calculator's 1 kg = 2.2046226218487757 lb factor.
kg to Stones Converter
Convert kilograms to decimal stones and stone plus pounds with metric-first explanations, conversion details, examples, and UK body-weight context.
Lbs to Newtons Converter
Convert pound-force to newtons and newtons to pound-force for force, load, spring, fastener, and mechanics calculations.
mcg to mg Converter
Convert micrograms to milligrams using the exact SI relationship 1 mg = 1000 mcg, with dosing cautions, examples, and reference tables.
mg to lbs Converter
Convert milligrams to pounds with decimal and scientific notation, plus ounces and grams for lab samples, ingredients, materials, and tiny package weights.
ms to Seconds Converter
Convert milliseconds to seconds or seconds to milliseconds for programming, latency, audio, sports timing, and measurement logs.
Pounds to Stone Converter
Convert pounds to stone with the exact 14 lb per stone factor, canonical lb-to-st guidance, decimal-stone examples, and UK body-weight context.
Stone to kg Converter
Convert stone to kilograms with a body-weight-focused guide, exact formulas, stone-and-pound context, examples, and common UK and Ireland usage notes.
Stone to lbs converter
Convert stone to pounds with the exact 14 lb per stone relationship, plus kilogram context, body-weight examples, and stone-and-pound reading tips.