Each house is exactly 30°, but the house starts 15° before the Ascendant degree. Basic Rule:
Often, a Mahadasha or Antardasha produces results entirely different from what the Rashi chart indicates. The Chalit chart clarifies this by showing where the planet truly operates. bhava chalit chart calculator
Without a Bhava Chalit chart, you might tell a client: "Mars is in your 10th house of career." But using the Chalit chart, you might discover that Mars has actually slipped into the 9th house of luck and dharma, completely changing the prediction. Each house is exactly 30°, but the house