He published five volumes of poetry and drama: Canzone... (1811), Le Danaidi (1818), Elpis patridos (1818), Lyra (1824) and New odes (1826).
In 1802, when Andreas was ten years old, his father took him and Nicolaos, but not his wife, to Livorno (Leghorn) in Italy, where his brother was consul for the Ionian Islands and where there was a Greek community.
In Livorno, Andreas first studied ancient Greek and Latin literature and history.
However, during that year he also met Ugo Foscolo, the most honoured Italian poet and scholar of the era, and, like Calvos, a native of Zacynthos.
In 1814 he wrote another Italian ode, 'To the Ionians', expressing his sympathy with the plight of his fellow-countrymen, and at this period made a close study of the works of Rousseau.
By the end of 1816 the two poets travelled together to Britain, and continued their association in London until February 1817, when for an unknown reason they quarrelled and separated.
He composed and published a modern Greek grammar, 'Italian Lessons, in four parts' and dealt with the syntax of an English-Greek dictionary.
By the end of 1819 Calvos had a love affair with a student, Susan Fortune Rideout, but her parents did not approve, and it was considered too soon after his wife's death for them to think of marrying.
At the beginning of 1825 Kalvos returned to Paris, where in 1826 he published ten more Greek odes, Lyrica, with the financial aid of philhellenes.
In the end of July 1826 Calvos decided to travel to Greece himself, and, as he said in the dedication to his 1826 odes, to expose his heart to Musulman fire.
On 5 February 1853 he married Charlotte Augusta Wadams, a woman twenty years younger than he.
In June 1960 the poet George Seferis, who at that time was Greek ambassador to Britain, arranged for Calvos's remains to be transferred to Zacynthos, where they rest in the church of St Nicolas.