Singapore is Southeast Asia's most expensive city, but smart travelers can manage. The hawker center strategy is key: breakfast to dinner at hawker centers costs S$10-20/day for food. The MRT is cheap and covers the island ($1-2 per journey). Major attractions add up — Gardens by the Bay, Universal Studios, and the Singapore Zoo each cost S$28-88.
Budget travelers spending S$80-120 ($60-90 USD)/day can cover a budget hotel, hawker meals, and MRT travel. Mid-range travelers (S$200-300/day) stay comfortably and visit premium attractions. The Singapore Tourist Pass (unlimited MRT/bus) is useful if you're moving around a lot.