The Bank of England also kept its benchmark rate at 0.5 per cent and maintained its bond-buying target at 375 billion pounds.
The latest US economic data surpassed forecasts and boosted sentiment on the outlook. Weekly initial jobless claims data showed a drop of 19,000 to a seasonally-adjusted 326,000, the lowest level since January 2008. The report beat expectations, just as the ADP employment data did earlier this week.
That bodes well for tomorrow's monthly government payrolls data. The economy added 185,000 jobs in July, according to the median forecast in a Bloomberg survey, while the jobless rate may have declined to 7.5 per cent last month.
Separately, the Institute for Supply Management's index of national factory activity rose to 55.4 in July, the highest level in two years, while Markit's final US Manufacturing Purchasing Managers Index increased to 53.7 in July, the highest since March.
"The future growth outlook remains on a highly positive trajectory, keeping the September tapering timeline firmly intact despite the Fed's nod to below-target inflation," Gennadiy Goldberg, an economist at TD Securities in New York, told Reuters.
In late afternoon trading in New York, the Dow Jones Industrial Average climbed 0.93 per cent, the Standard & Poor's 500 Index rose 1.17 per cent and the Nasdaq Composite Index gained 1.16 per cent. Earlier in the session the Dow hit a record high 15,650.69, while the S&P 500 touched a record 1,706.21.
Gains in shares of American Express, Bank of America and Hewlett-Packard propelled the Dow.
In Europe, the Stoxx 600 Index rallied 1.2 per cent from the previous close. The UK's FTSE 100 increased 0.9 per cent, while France's CAC 40 climbed 1.3 per cent and Germany's DAX jumped 1.6 per cent.
Markit's Eurozone Manufacturing PMI climbed to a two-year high of 50.3 in July, up from 48.8 in June, pointing to growth for the first time since July 2011.
"Rising export demand and stabilising domestic markets took growth of new orders and output to rates, albeit still modest, last scaled in mid-2011," Rob Dobson, senior economist at Markit, said in a statement. "This hopefully places the sector nicely to provide a positive spur to the third quarter GDP numbers and help the euro area exit recession."