# looking for size equals

Discussion in 'Digital Photography' started by LesU, Sep 3, 2003.

1. ### LesUGuest

Looking for a table of sizes:
4X6 = ?? Megapixels
5X7 =
8X10 =
11X14 =
16X20 =
20X24 =
simple numbers, not a formula for printing.

Thanks

LesU, Sep 3, 2003

2. ### FrogiswrongGuest

Approx for around 250ppi.

Frogiswrong, Sep 3, 2003

3. ### CanongirlyGuest

Well this is going to annoy you.

you can make a 6x4 print form 1x1 pixel if you wanted too (it'd look crap)
and by the asame token you could make a 6x4 from 3m pixels if you so
desired....though it may take forever to output.

Work on the basis of 300dpi for most printing applications up to 20x16.

And yes for pixel count you'll just have to work that out for yourself.

Canongirly, Sep 3, 2003
4. ### Andrew McDonaldGuest

Generally 300dpi is the accepted number for prints although I have done
200dpi with pretty good results.

So a 4x6 would be 4 x 300 = 1200 and 6x300 = 1800. For a really good
4x6 print you would need 1200x1800 pixels.

You can do the math yourself for the rest. Just multiply inches times
desired dpi.

Andrew McDonald, Sep 3, 2003
5. ### Jim TownsendGuest

Easy answer. Pixels have no size.. So you absolutely *can't* convert inches
to megapixels.

1 gallon of fuel = how many miles.

Jim Townsend, Sep 3, 2003
6. ### FrogiswrongGuest

at least not without a ppi value.

Frogiswrong, Sep 4, 2003