Where is Mars right now?
Mars is currently about 278,824,868 kilometres from Earth, or 1.86 astronomical units, which puts a one-way radio signal 15.5 minutes out. In the sky it is 54 degrees from the Sun and well placed in the morning sky.
This page is about where Mars is. For the planet itself, its size, its day, its moons and a photograph, see Mars.
The distance above is the one number about Mars that changes most and matters most. Earth laps it roughly every 26 months, so the gap between the two swings from about 55 million kilometres at the best oppositions to more than 400 million at conjunction. Everything else about observing Mars follows from where in that cycle you happen to be asking.
Right now it is 54 degrees from the Sun, reaching its highest point about three and a half hours before the Sun does. The next opposition falls on 19 February 2027, and it is an unhelpful one: Mars is near the far end of its own elliptical orbit at the time, so closest approach the following day is about 101 million kilometres, the most distant opposition of the century.
The signal delay is the same fact stated differently, and it is why nothing on the surface is driven in real time. A command sent now lands minutes later, so the rovers are given a day of work at a time and left to carry it out.
Two of them are still doing it. Curiosity has been climbing Mount Sharp since 2012 and Perseverance has been caching sealed samples in Jezero crater since 2021, with seven orbiters overhead relaying for them.