How much grout for metro tiles

[SP87]

I have approx 14sqm of 200 x 100 ceramic metro tiles to grout, tiles are 6mm thick with 2mm spacers.

Would a 5kg bag of grout (Mapei Keracolor) cover it? I've used a couple of grout calculators online which say I need less than 5kg but this just doesn't look enough to me?

Have to order this particular colour online so don't want to pay delivery cost twice in case I need more

Thanks

 

[J K Tiling Cornwall]

You have most probably already grouted now, but with a 2mm grout joint a 5kg bag should do that area okay. Cheers