plan · measure

1. Origins, structure, and basic meaning

• Structure: The on reading of 計 is けい, and its kun readings are はかる and はからう. It has 9 strokes and relates to measuring, calculating, or planning.
• Basic usage: 計る is read はかる, and 計画 is read けいかく.

2. Common pitfalls and similar expressions

• 計る and 計画
  • 計る means measure or gauge.
  • 料理を始める前に、必要な時間を計る。 means “I estimate the time needed before I start cooking.”
  • 計画 means plan.
  • 夏休みの旅行計画を家族で立てた。 means “My family and I planned a summer vacation trip.”