noun which may take the genitive case particle 'no'
Used before の or with quantities to mean what remains after excluding deductions, breaks, packaging, or irrelevant parts; common with time, amount, profit, and similar measurable things.
休憩を除くと、正味の作業時間は四時間だった。
Excluding breaks, the actual working time was four hours.
noun
Measurement use: the weight or contents of the product itself, not including packaging or container weight. Often appears on labels as 正味 followed by a weight.
ラベルには「正味300グラム」と書いてある。
The label says “net weight 300 grams.”
noun
Commercial or accounting use: the price after deductions such as discounts or charges, or the underlying cost price depending on context. Common in compounds such as 正味価格.
割引後の正味価格を見積書に記入した。
I entered the net price after the discount in the estimate.
noun
actual content; substantive part; useful part
Refers to the real substance or useful portion after removing padding, formalities, or irrelevant material.
長い報告書だが、正味は数ページしかない。
It is a long report, but the substantive content is only a few pages.