No. A basic time calculator for speed and distance assumes constant speed for the whole journey. It gives you pure travel time, not a real-world estimate that includes traffic lights, rest breaks, or delays.
Divide distance by speed: Time = Distance ÷ Speed. Make sure both values use matching units — for example, miles with mph, or kilometers with km/h — before you divide.
For this kind of calculation, no — speed is enough. Velocity adds direction into the mix, which matters in physics problems but not for working out how long a journey will take.
The whole number is hours, and you convert the decimal to minutes by multiplying it by 60. So 2.5 hours is 2 hours plus (0.5 × 60), which equals 2 hours 30 minutes.
Average speed reflects your actual pace across the whole journey, including slower sections. Top speed is the fastest point reached. Always use average speed for an accurate time estimate — using top speed will underestimate how long the journey actually takes.