The euro zone economy grew by 0.6% in the first quarter of 2016, the highest rate for 12 months, supported by household spending and private sector investment.
This is according to data from the European statistics agency Eurostat.
In a second revision of its figures, Eurostat said that gross domestic product (GDP) increased by 0.6% from the previous quarter and by 1.7% year-on-year.
That compared with its initial "preliminary flash" figures of 0.6% and 1.6% on April 29 and subsequent downward cut in its flash estimate to 0.5% and 1.5% in May.
The rate of growth matched the level in the first quarter of 2015, a pace only surpassed at the start of 2011, when the euro zone economy raced ahead at 0.9%.
The greatest contributions to overall euro zone GDP were household spending and private sector investment. Inventory changes and public sector spending were also positive, but imports increased by more than exports.
Quarter-on-quarter growth was at a healthy 0.7% in Germany, the euro zone's largest economy, 0.6% in France and 0.3% in Italy.
The only euro zone nation suffering contraction was Greece, whose economy shrank by 0.5%.
There were no figures provided for Ireland, Luxembourg and Malta.
