There are two types of TOEFL test, internet-based test (iBT) and paper based test (PBT). More than 27 million people from all over the world have taken the TOEFL test to demonstrate their English-language proficiency. The average English skill level ranges between Intermediate and Advanced.
TOEFL iBT – 0 to 30 (in 1 point increments) on each of the 4 sections.
Total of 0 to 120.
TOEFL PBT – Listening: 31 to 68, Structure: 31 to 69, Reading: 31 to 67.
Total of 310 to 677. Writing (separate): 0 to 6. (All in 1 point increments.)
TOEFL iBT – 3 hours 10 minutes to 4 hours 20 minutes (excluding 10 minute break in-between).
TOEFL PBT – 2 hours 20 minutes to 2 hours 30 minutes.
The TOEFL test has more test dates (more than 50 per year) and locations than any other English-language test in the world. You can retake the test as many times as you wish, but you cannot take it more than once in a 12-day period. If you already have a test appointment, you cannot register for another test date that is within 12 days of your existing appointment.
The cost of the test can range from US$160 to US$250 and varies between countries. For information on registration, fees, test dates and locations
visit on Link
For any further details you can visit TOEFL official website www.ets.org/toefl