How many Countries are there in the World? Countries in the World: 195. There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine. Next activity. See our notes about other Questions Words and Much vs Many. Try our interactive game about How much vs.How many. If you found this grammar guide about How much and How many in English useful, let others know about it: Directions Time Duration Calculator Enter earlier or start time information at From: Enter later or end time information at To: Enter hours and minutes. Select am or pm. The hours entered must be a positive number between 1 and 12 or zero (0). The minutes entered must be a positive number between 1 and 59 or zero (0). Click Click to. Define many. many synonyms, many pronunciation, many translation, English dictionary definition of many. adj. more , most 1. Amounting to or consisting of a large indefinite number: many friends. 2. Definition of many written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. How many solar panels do I need to power my house? If the average household consumes about 10,400 kWh per year and we assume 250-watt solar panels, we can use the high and low panel production ratios to calculate how many solar panels are needed on average.Thus, the typical homeowner will need 28 – 34 solar panels to cover 100% of energy usage (dependent on location and roof size). How many definition is - —used to ask or talk about an amount. How to use how many in a sentence. How many people share your name? Enter it and find out how many of you there are. Q: Why have the number of people with my name changed? As part of our constant attempt to keep this site fresh, we've updated our data with recently released last name information from the 2000 Census. In many cases the number of people with a particular name. The Duration Calculator calculates the number of days, months and years between two dates.