計る, 測る, and 量る: timing, dimensions, and weight
Learn representative combinations of はかる for time, dimensions, and weight, while recognizing that 測る can have a broader measurement scope.
Time a duration
走る時間をストップウォッチで計りました。 says that someone timed a run with a stopwatch. 計る, read はかる, is used for measuring time or counting quantities.
三分を計ってから、ふたを開けました。 says that someone timed three minutes and then opened the lid. Preserve both the timing and the subsequent opening.
Measure length and temperature
机の幅を物差しで測りました。 says that someone measured the desk's width with a ruler. 測る, read はかる, is used for dimensions, temperature, and other measurements.
体温を測って、数字を記録しました。 says that someone measured their temperature and recorded the number. Recording the result was also completed.
Measure weight and portions
小麦粉を百グラム量りました。 says that someone weighed out one hundred grams of flour. 量る, read はかる, is a representative spelling for weight or quantity.
The broader measurement use of 測る can overlap other spellings. Learn 時間を計る, 長さを測る, and 重さを量る as useful anchors without forcing every context into three rigid categories.
What was measured, and how much, in 小麦粉を百グラム量りました?
Show the answer and why
One hundred grams of flour were weighed out. It measures an ingredient's quantity by weight, not time.