There is a missing unit after the 1.75, but I guess that is 1.75 imperial pints which is approximately 1 litre, so I'll guess the question is also referring to imperial gallons (not US gallons which are smaller):
→ 1 gallon ÷ 1.75 pt = 8 pt ÷ 1.75 = 4 4/7 ≈ 4.57
1 imp gallon ≈ 4.55 litres
1 US gallon ≈ 3.79 liters
it is approximately 0.4 gallons.
Also, Google is your friend ;) I literally just typed '1.75 litres in gallons' into Google to find this.
About 0.264 US gallons per liter
For US gallons, 6.624 L For UK gallons, 7.955 L
One liter = 0.22 UK gallons.
1 liter is about 0.22 Imperial gallons.
One liter = about 0.219 UK gallons.
1 liter = 0.264172051 US gallons
1/2 liter = about 0.132 US gallons Hope It Helps
One liter of water is about 0.264 US gallons.
175 gallons
1.7 US gallons.
About 3 US gallons.
One liter is about 0.219 Imperial gallons.