The cost of living in Amsterdam in the Netherlands is approximately 1000 Euro per month according to the reputable institute NIBUD.nl.
This estimate does not include tuition fees and unforeseen costs and should be used as a general indication of the costs of living. How much money you will actually need depends on your lifestyle. The costs for housing, for example, may differ considerably. Also, if you plan to travel during your stay, you will obviously need more money.
If you are an European, European Space or Swiss student you can also entitled to a Public Transport Student Card (‘OV-studentenkaart’). You can use this card to travel with Dutch public transport for free or at a discount. This card can also be requested from the Dienst Uitvoering Onderwijs.