Maximum ship speed using standard drive technology: ~0.03c (3% of the speed of light) - meaning that it takes around a year and a half to travel from most central point of the system to the Oort cloud. ~4.2AU per day. This is specifically for cutting-edge ships, the average cargo tug will be closer to 0.01c and civilian/military ships will fall somewhere in the midrange.

• Mars to Earth: 2-6 hours
• Mars to Jupiter: 1-2 days
• Mars to Neptune: 1-2 weeks
• Mars to the Kuiper Belt: 2 – 4 weeks
• Mars to Eris: 1.3 – 3 years