Haha, you found the very old version with archaic spellings and everything so I think a translation tool might struggle somewhat 
. The language has been updated and the modern Swedish hymnals tend to include six of those verses: 1, 3, 4, 5, 8 and 9.
Here's the translation by the American guy, E. Gustav Johson. Reading it, parts of it is closer to the Swedish in some senses but feels a bit clumsy and turgid. The translated verses correspond to Swedish verses 1, 2, ?, 8 and 9. The question mark is there because that does not appear at all in the Swedish 
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O mighty God, when I behold the wonder
Of nature?s beauty, wrought by words of Thine,
And how Thou leadest all from realms up yonder,
Sustaining earthly life in love benign,
Refrain
With rapture filled, my soul Thy name would laud,
O mighty God! O mighty God!
With rapture filled, my soul Thy name would laud,
O mighty God! O mighty God!
When I behold the heavens in their vastness,
Where golden ships in azure issue forth,
Where sun and moon keep watch upon the fastness
Of changing seasons and of time on earth,
Refrain
When I behold His Son to earth descending,
To help and heal and teach distressed mankind;
When evil flees and death in fear is bending
Before the glory of the Lord divine,
Refrain
When, crushed by guilt of sin, before Him kneeling
I plead for mercy and for grace and peace,
I feel His balm and, all my bruises healing,
He saves my soul and sets my heart at ease.
Refrain
When finally the mists of time have vanished,
And I in truth my faith confirmed shall see,
Upon the shores where earthly ills are banished,
I enter, Lord, to dwell in peace with Thee.
With rapture filled, my soul Thy name would laud,
Thanks be to Thee, O mighty God!
With rapture filled, my soul Thy name would laud,
Thanks be to Thee, O mighty God!