The question, as stated, cannot be answered sensibly. A square foot is a measure of area, with dimensions [L2]. A gallon is a measure of volume, with dimensions [L3]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
300 gallons
1 sq foot = 1 ft * 1 ft = 12 in * 12 in = 144 sq inches.
43,560 sq ft is the equivalent to one acre of land.
An acre is 43,560 sq ft, so half an acre is 21,780 sq ft. Th edepth is 16 feet so volume is 16 x 21780 = 348,480 cu ft. Ther is 7.48 gallons in a cu ft so 7.48 x 348,480 = 2,606,630 gallons
One Acre = 43,560 sq ft \ 4 = 10,890 sq ft
300 gallons
100 sq ft equals 748 liquid gallons.
sq ft is length X width for cubic ft you need depth or height just multiply your sq ft by this
Covers 25 sq ft per gallon according to mfgr, so about 7.5 gallons.
1,496.104 gallons
Approximately 2000 SQ Ft
3x3 Sq Ft is one vaar so 9Sq Ft is one vaar. Hence 133x9 = 1197 Sq ft
One sq yd is 9 sq ft, (3ft x 3ft) so 12 sq yds is 108 sq ft (12 x 9 sq ft)
1870.13 gallons per inch of depth. 144 sq. ins./sq. ft. X 3000 sq. ft.= 432,000 sq. ins. 1 gal. = 231 cu. ins. = 231 sq. ins X 1 in. deep. 432,000 sq. ins. / 231 sq. ins. per gal @ 1 in. depth = 1870.12987+ gallons @ 1 in.
Diameter= 60 ft. Radius = 30 f. Depth = 12 ft. Area = PI * r^2 (sq. ft.) = PI*30^2 = 2827.4 sq. ft. Volume = (Area * Depth)/2 (cu. ft.) = 16964.6 cu. ft. =Volume (cu. ft.) * 0.13368 cu.ft./gal >>(gallons) = 126890.6 gallons
That all depends on how deep the 530 sq ft area is
1 sq foot = 1 ft * 1 ft = 12 in * 12 in = 144 sq inches.