I can do the math for you. Basically, you have to know the distance between where you are and where you are going.
1G = 9.807m/sec-sec
1 hour of acceleration is 3600 seconds, so 35.3 km/sec velocity after 1 hour at 1G or 127,100 km/hr or 3,050,369 km/day. So 3Mkm per day for 1G for 1 hour of acceleration.. ( I would recommend 35 km/sec and 125,000 km/hr and 3 mega km/day as your simplified speeds for easy calculations)
So for each 1 AU trip (average trip to either Mars or Venus) would be 150 MKm
So the trip takes:
150/3 = 50 days
So 50 days and you burn 2G-Hrs of fuel. (1 G-Hr to accelerate and 1G-hr to decelerate) - YES, there is orbital insertion if desired, but I would simplify that and just say it takes 0.1 G-Hr to enter an orbit.
(at that time scale, you can forget the acceleration/deceleration time)
Either double the G force or double the time (2 G-hr) and you get half the time to get there at double the fuel. Half the acceleration and double the time for half the fuel.
The numbers really work out pretty simply.
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