Assuming you are playing Pearl, Diamond, Platinum, HearGold or SoulSilver, 6630 steps. If you want it to hatch quicker I suggest getting a Pokemon with the Magma Armour ability, like Slugma, Magcargo or Camerupt in your party with the egg, and it will then hatch in half the steps (3315)
It takes 3570 steps with flame body(Pokemon Ability). Without flame body it takes 7140 steps.
it took me 6615 steps on a bike so try that
6,400 steps but this can be halved with a Pokemon knowing Flame Body or Magma Armour.
It would take a maximum of 6,400 steps for a Lucario Egg to hatch provided you ever got a Lucario Egg in your possession.
It deepens on the Pokemon
you get a electric Pokemon put it next to the egg and take 6000 steps then it should hatch
on iron island, after you beat the dungeon with riley, she will give a egg only if you have a open space in your party. the egg will hatch into a riolu
You do not find an egg that doesn't hatch into happiny or riolu. You must find a girl and boy Pokemon (or girl and ditto or boy and ditto Pokemon) and put them in the daycare, and they may make an egg and allow you to get an egg that isn't happiny or riolu (unless that was the pair you made the Pokemon for).
You need to have the egg in your party and then walk/ride your bike a few thousand steps (I don't remember exactly how many) to get it to hatch. Then Riolu will evolve into Lucario when its happiness is maxed.
The Egg Cynthia gives you will hatch into a Togepi. The Egg Riley gives you will hatch into a Riolu. If you received an Egg from the Day Care, it will hatch into the same species as the mother pokemon unless you breed a male with a Ditto.
It takes a Riolu Egg a maximum of 6,400 steps to hatch however each Riolu Egg is different so it could hatch earlier depending on the Egg and other factors involved.
When you hatch Riolu from an egg, it will be level 1
It all depends on which kind of Egg; Riolu eggs take longer to hatch than say, a Caterpie Egg. To be sure, go to Bulbapedia.org or Serebii.net (must-know websites for Pokèmon Fans)
it takes 6500 steps to 8000
in order to hatch a riolu egg you need to walk about 5,000-6,000 steps
around 10000 steps
you run around sinnoh and it will hatch into riolu.
It can take between 6630 to 6884 steps to hatch a Riolu egg. The number of steps needed will be halved if you have a Pokemon with the ability Flame Body or Magma Armor in your team with the egg.
you get a electric Pokemon put it next to the egg and take 6000 steps then it should hatch
On Iron Island, a guy named Riley will give you an egg. It will hatch into Riolu.
riolu
Its all about luck, Riolu has a 12.5% chance of being female when you hatch it from the egg.