Translation guide
To ask about frequency or number of occurrences, Japanese uses counter words with question words like 何回 (nankai) or 何度 (nando). The choice depends on what is being counted and the level of formality.
The speaker wants to know the count of times an action has happened or will happen.
The most common and neutral way to ask 'how many times'. 回 is the generic counter for occurrences.
How many times have you seen this movie?
How many times a week do you exercise?
Similar to 何回, but 度 can imply a slightly more formal or emphatic tone. Often interchangeable with 何回.
Means 'many times' or 'repeatedly', not a question. Included here because learners may encounter it when searching for 'how many times'.
He made the same mistake many times.
The speaker wants to know how often something occurs within a time frame (per day, week, etc.).
Use a time period + に + 何回 to ask 'how many times per (period)'. Common periods: 日 (day), 週 (week), 月 (month), 年 (year).
How many times a day do you brush your teeth?
How many times a week do you go to the gym?
Same pattern with 何度, slightly more formal or emphatic.
How many times a year do you travel abroad?
The speaker wants to know the frequency, not a specific number.
Both mean 'how many times' and are often interchangeable. 何回 is more common in daily speech. 何度 can sound slightly more formal or emphatic, and is preferred in some fixed expressions like 何度も (many times).
How many times do I have to tell you?
I'm sorry for the many times (I've bothered you).
いくつ means 'how many' for objects, not for times. Using it for occurrences is incorrect. Use 何回 or 何度 instead.
Incorrect: いくつ行きましたか。
How many times have you been to Japan?
どれくらいのペースで走っていますか。
How often do you go running?
Correct: How many times did you go?