Question : IP subnetting question

Hey all I need some help. I am horrible at breaking out subnets. Basically I have 172.18.0.0 assisgned to me. I need 5 VLANs created all spread out with a equal number of IP's. What would I use as my VLAN IP range\GW\subnet for each? I have verified my switches can handle multiple VLANS so I am good there.  thank you all for your help!

server VLAN
user VLAN
wired\wireless guest VLAN
Lab VLAN
test VLAN

Answer : IP subnetting question

if you break this into 24 bit mask, you will have 256 subnets with 254 hosts each.  An example has been outlined:

I don't like to use 0 in my space if I don't have to so I skipped the first available subnet.

Vlan #  Use                        subnet    mask                               host range
vlan10  Servers            172.18.1.0       255.255.255.0            172.18.1.1  to  172.18.1.254      
vlan20  users                172.18.2.0       255.255.255.0            172.18.2.1  to  172.18.2.254      
vlan30  wired/wireless 172.18.3.0       255.255.255.0            172.18.3.1  to  172.18.3.254      
vlan40  Lab                    172.18.4.0       255.255.255.0            172.18.4.1  to  172.18.4.254      
vlan50  test                    172.18.5.0       255.255.255.0            172.18.5.1  to  172.18.5.254      

the default gateway is going to be whatever IP you assign to the router. I typically assign the first ip address of the host range to the router.  So for vlan10 the gw would be 172.18.1.1, vlan20 172.18.2.1 etc..