Weight and mass vocabulary in French, including units, common expressions, and example sentences for everyday use.

Understanding how to talk about weight and mass in French is essential for everything from shopping to science. This guide covers the key vocabulary, units of measurement, and example sentences to help you express weight and mass confidently.

Measurement Units

These are the standard units of weight and mass used in French-speaking countries.
French Singular/PluralEnglish Singular/PluralFrench ExampleEnglish Example
le gramme / les grammesgram / gramsCe paquet pèse 500 grammes.This package weighs 500 grams.
le kilogramme / les kilogrammeskilogram / kilogramsJ’ai acheté 2 kilogrammes de pommes.I bought 2 kilograms of apples.
la tonne / les tonnestonne / tonnesUn éléphant pèse plusieurs tonnes.An elephant weighs several tonnes.
le milligramme / les milligrammesmilligram / milligramsCe médicament contient 250 milligrammes d’ingrédients actifs.This medicine contains 250 milligrams of active ingredients.
la livre / les livrespound / poundsCette recette demande une livre de beurre.This recipe requires a pound of butter.
l’once / les oncesounce / ouncesonce équivaut à environ 28 grammes.ounce is about 28 grams.

Ce médicament contient 250 ___ d’ingrédients actifs.


How do you say 'milligram' in French (singular)?


milligramme
'Milligramme' is the French word for milligram. The example sentence means 'This medicine contains 250 milligrams of active ingredients.'

Common Objects

These nouns help you describe the weight or mass of everyday items.
French Singular/PluralEnglish Singular/PluralFrench ExampleEnglish Example
la boîte / les boîtesbox / boxesLa boîte pèse 200 grammes.The box weighs 200 grams.
le sac / les sacsbag / bagsCe sac contient 5 kilogrammes de riz.This bag contains 5 kilograms of rice.
la bouteille / les bouteillesbottle / bottlesLa bouteille est pleine et lourde.The bottle is full and heavy.
le paquet / les paquetspackage / packagesLe paquet est plus léger que prévu.The package is lighter than expected.
le livre / les livresbook / booksCe livre pèse un kilo.This book weighs one kilo.

Verbs

These verbs are commonly used when talking about weight and mass.
French VerbEnglish VerbFrench ExampleEnglish Example
peserto weighCombien pèse cette valise ?How much does this suitcase weigh?
mesurerto measureLe scientifique mesure la masse avec précision.The scientist measures the mass precisely.
souleverto liftJe ne peux pas soulever cette boîte.I can’t lift this box.
porterto carryPeux-tu porter ce sac ?Can you carry this bag?
grossirto gain weightMon chat a grossi cet hiver.My cat has gained weight this winter.

Adjectives

These adjectives help describe weight, whether something is heavy, light, or in between.
French AdjectiveEnglish AdjectiveFrench ExampleEnglish Example
lourd / lourdeheavyCe meuble est très lourd.This piece of furniture is very heavy.
léger / légèrelightCe sac est léger, je peux le porter facilement.This bag is light; I can carry it easily.
pesant / pesanteweighingUn colis pesant 10 kilos arrive aujourd’hui.A package weighing 10 kilos is arriving today.
massif / massivemassiveUne masse massive bloque la porte.A massive weight is blocking the door.
volumineux / volumineusebulkyLe colis est volumineux mais pas lourd.The package is bulky but not heavy.

Un colis ___ 10 kilos arrive aujourd’hui.


What does 'pesant' mean in French?


weighing
'Pesant' means 'weighing.' The sentence means 'A package weighing 10 kilos is arriving today.'

Quantities and Expressions

These phrases help you talk about weight more naturally in conversation.
French ExpressionEnglish ExpressionFrench ExampleEnglish Example
combien ça pèse ?how much does it weigh?Combien ça pèse, ce gâteau ?How much does this cake weigh?
ça pèse ...it weighs ...Ce sac pèse 3 kilos.This bag weighs 3 kilos.
en poids dein weight ofIl a perdu cinq kilos en poids de santé.He lost five kilos in health weight.
à pleine chargeat full loadLe camion est à pleine charge.The truck is at full load.
lourd comme ...as heavy as ...Ce sac est lourd comme une pierre.This bag is as heavy as a rock.
With these sections, you have a comprehensive overview of French vocabulary for weight and mass, from basic units to common expressions.

Le camion est à pleine charge.


What does 'à pleine charge' mean in English?


at full load
'À pleine charge' means 'at full load,' indicating something is fully loaded or carrying maximum weight.

Flashcards (1 of 26)

    • English Singular/Plural: gram / grams
    • English Example: This package weighs 500 grams.

    Last updated: Thu Jun 12, 2025

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