British and Irish passport holders do not require visas to visit Singapore for a stay of less than one month, if they have a passport valid for at least 6 months upon entry, a confirmed onward return ticket and sufficient funds for their stay in Singapore.
ALL OTHER COUNTRIES:-
Please visit the Immigration & Checkpoints Authority (ICA) website for detailed information on visa requirements to Singapore: http://www.ica.gov.sg/services_centre.aspx?pageid=232&secid=20
You can also visit the Ministry of Foreign Affairs Consular Services website at: http://www.mfa.gov.sg/consular
for more details check the link below it can help you :-