Vocabulary What does 容積 (ようせき, youseki) mean? 容積 (ようせき, youseki) means capacity, volume. Quick factsReadingようせきRomajiyousekiPart of speechnounLevel (estimated, JLPT framework)N2 容積ようせきN2 · estimated, JLPT frameworkCommonyousekicapacity, volume1noun capacity; volumeExample sentencesタンクの容積(ようせき)はとても大(おお)きい。The tank's capacity is very large.このタンクの容積は千リットルです。Please calculate the capacity of this box.Kanji in this word容contain, accommodate; appearance積accumulation; area, volume