ip
ipku.in

IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

$ ipcalc
private IP (RFC 1918)10.3.225.0/24
network10.3.225.0/24
broadcast10.3.225.255
first host10.3.225.1
last host10.3.225.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.3.225.0/24
address00001010.00000011.11100001.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000011.11100001.00000000
broadcast00001010.00000011.11100001.11111111
green = network part, grey = host part
hex0x0a03e100
decimal168026368
reverse dns0.225.3.10.in-addr.arpa
ipv4-mapped::ffff:a03:e100

/24 split into /32 · 256 subnets

close ×
#networkhost rangebroadcast
110.3.225.0/3210.3.225.0 – 10.3.225.010.3.225.0
210.3.225.1/3210.3.225.1 – 10.3.225.110.3.225.1
310.3.225.2/3210.3.225.2 – 10.3.225.210.3.225.2
410.3.225.3/3210.3.225.3 – 10.3.225.310.3.225.3
510.3.225.4/3210.3.225.4 – 10.3.225.410.3.225.4
610.3.225.5/3210.3.225.5 – 10.3.225.510.3.225.5
710.3.225.6/3210.3.225.6 – 10.3.225.610.3.225.6
810.3.225.7/3210.3.225.7 – 10.3.225.710.3.225.7
910.3.225.8/3210.3.225.8 – 10.3.225.810.3.225.8
1010.3.225.9/3210.3.225.9 – 10.3.225.910.3.225.9
1110.3.225.10/3210.3.225.10 – 10.3.225.1010.3.225.10
1210.3.225.11/3210.3.225.11 – 10.3.225.1110.3.225.11
1310.3.225.12/3210.3.225.12 – 10.3.225.1210.3.225.12
1410.3.225.13/3210.3.225.13 – 10.3.225.1310.3.225.13
1510.3.225.14/3210.3.225.14 – 10.3.225.1410.3.225.14
1610.3.225.15/3210.3.225.15 – 10.3.225.1510.3.225.15
1710.3.225.16/3210.3.225.16 – 10.3.225.1610.3.225.16
1810.3.225.17/3210.3.225.17 – 10.3.225.1710.3.225.17
1910.3.225.18/3210.3.225.18 – 10.3.225.1810.3.225.18
2010.3.225.19/3210.3.225.19 – 10.3.225.1910.3.225.19
2110.3.225.20/3210.3.225.20 – 10.3.225.2010.3.225.20
2210.3.225.21/3210.3.225.21 – 10.3.225.2110.3.225.21
2310.3.225.22/3210.3.225.22 – 10.3.225.2210.3.225.22
2410.3.225.23/3210.3.225.23 – 10.3.225.2310.3.225.23
2510.3.225.24/3210.3.225.24 – 10.3.225.2410.3.225.24
2610.3.225.25/3210.3.225.25 – 10.3.225.2510.3.225.25
2710.3.225.26/3210.3.225.26 – 10.3.225.2610.3.225.26
2810.3.225.27/3210.3.225.27 – 10.3.225.2710.3.225.27
2910.3.225.28/3210.3.225.28 – 10.3.225.2810.3.225.28
3010.3.225.29/3210.3.225.29 – 10.3.225.2910.3.225.29
3110.3.225.30/3210.3.225.30 – 10.3.225.3010.3.225.30
3210.3.225.31/3210.3.225.31 – 10.3.225.3110.3.225.31
3310.3.225.32/3210.3.225.32 – 10.3.225.3210.3.225.32
3410.3.225.33/3210.3.225.33 – 10.3.225.3310.3.225.33
3510.3.225.34/3210.3.225.34 – 10.3.225.3410.3.225.34
3610.3.225.35/3210.3.225.35 – 10.3.225.3510.3.225.35
3710.3.225.36/3210.3.225.36 – 10.3.225.3610.3.225.36
3810.3.225.37/3210.3.225.37 – 10.3.225.3710.3.225.37
3910.3.225.38/3210.3.225.38 – 10.3.225.3810.3.225.38
4010.3.225.39/3210.3.225.39 – 10.3.225.3910.3.225.39
4110.3.225.40/3210.3.225.40 – 10.3.225.4010.3.225.40
4210.3.225.41/3210.3.225.41 – 10.3.225.4110.3.225.41
4310.3.225.42/3210.3.225.42 – 10.3.225.4210.3.225.42
4410.3.225.43/3210.3.225.43 – 10.3.225.4310.3.225.43
4510.3.225.44/3210.3.225.44 – 10.3.225.4410.3.225.44
4610.3.225.45/3210.3.225.45 – 10.3.225.4510.3.225.45
4710.3.225.46/3210.3.225.46 – 10.3.225.4610.3.225.46
4810.3.225.47/3210.3.225.47 – 10.3.225.4710.3.225.47
4910.3.225.48/3210.3.225.48 – 10.3.225.4810.3.225.48
5010.3.225.49/3210.3.225.49 – 10.3.225.4910.3.225.49
5110.3.225.50/3210.3.225.50 – 10.3.225.5010.3.225.50
5210.3.225.51/3210.3.225.51 – 10.3.225.5110.3.225.51
5310.3.225.52/3210.3.225.52 – 10.3.225.5210.3.225.52
5410.3.225.53/3210.3.225.53 – 10.3.225.5310.3.225.53
5510.3.225.54/3210.3.225.54 – 10.3.225.5410.3.225.54
5610.3.225.55/3210.3.225.55 – 10.3.225.5510.3.225.55
5710.3.225.56/3210.3.225.56 – 10.3.225.5610.3.225.56
5810.3.225.57/3210.3.225.57 – 10.3.225.5710.3.225.57
5910.3.225.58/3210.3.225.58 – 10.3.225.5810.3.225.58
6010.3.225.59/3210.3.225.59 – 10.3.225.5910.3.225.59
6110.3.225.60/3210.3.225.60 – 10.3.225.6010.3.225.60
6210.3.225.61/3210.3.225.61 – 10.3.225.6110.3.225.61
6310.3.225.62/3210.3.225.62 – 10.3.225.6210.3.225.62
6410.3.225.63/3210.3.225.63 – 10.3.225.6310.3.225.63
6510.3.225.64/3210.3.225.64 – 10.3.225.6410.3.225.64
6610.3.225.65/3210.3.225.65 – 10.3.225.6510.3.225.65
6710.3.225.66/3210.3.225.66 – 10.3.225.6610.3.225.66
6810.3.225.67/3210.3.225.67 – 10.3.225.6710.3.225.67
6910.3.225.68/3210.3.225.68 – 10.3.225.6810.3.225.68
7010.3.225.69/3210.3.225.69 – 10.3.225.6910.3.225.69
7110.3.225.70/3210.3.225.70 – 10.3.225.7010.3.225.70
7210.3.225.71/3210.3.225.71 – 10.3.225.7110.3.225.71
7310.3.225.72/3210.3.225.72 – 10.3.225.7210.3.225.72
7410.3.225.73/3210.3.225.73 – 10.3.225.7310.3.225.73
7510.3.225.74/3210.3.225.74 – 10.3.225.7410.3.225.74
7610.3.225.75/3210.3.225.75 – 10.3.225.7510.3.225.75
7710.3.225.76/3210.3.225.76 – 10.3.225.7610.3.225.76
7810.3.225.77/3210.3.225.77 – 10.3.225.7710.3.225.77
7910.3.225.78/3210.3.225.78 – 10.3.225.7810.3.225.78
8010.3.225.79/3210.3.225.79 – 10.3.225.7910.3.225.79
8110.3.225.80/3210.3.225.80 – 10.3.225.8010.3.225.80
8210.3.225.81/3210.3.225.81 – 10.3.225.8110.3.225.81
8310.3.225.82/3210.3.225.82 – 10.3.225.8210.3.225.82
8410.3.225.83/3210.3.225.83 – 10.3.225.8310.3.225.83
8510.3.225.84/3210.3.225.84 – 10.3.225.8410.3.225.84
8610.3.225.85/3210.3.225.85 – 10.3.225.8510.3.225.85
8710.3.225.86/3210.3.225.86 – 10.3.225.8610.3.225.86
8810.3.225.87/3210.3.225.87 – 10.3.225.8710.3.225.87
8910.3.225.88/3210.3.225.88 – 10.3.225.8810.3.225.88
9010.3.225.89/3210.3.225.89 – 10.3.225.8910.3.225.89
9110.3.225.90/3210.3.225.90 – 10.3.225.9010.3.225.90
9210.3.225.91/3210.3.225.91 – 10.3.225.9110.3.225.91
9310.3.225.92/3210.3.225.92 – 10.3.225.9210.3.225.92
9410.3.225.93/3210.3.225.93 – 10.3.225.9310.3.225.93
9510.3.225.94/3210.3.225.94 – 10.3.225.9410.3.225.94
9610.3.225.95/3210.3.225.95 – 10.3.225.9510.3.225.95
9710.3.225.96/3210.3.225.96 – 10.3.225.9610.3.225.96
9810.3.225.97/3210.3.225.97 – 10.3.225.9710.3.225.97
9910.3.225.98/3210.3.225.98 – 10.3.225.9810.3.225.98
10010.3.225.99/3210.3.225.99 – 10.3.225.9910.3.225.99
10110.3.225.100/3210.3.225.100 – 10.3.225.10010.3.225.100
10210.3.225.101/3210.3.225.101 – 10.3.225.10110.3.225.101
10310.3.225.102/3210.3.225.102 – 10.3.225.10210.3.225.102
10410.3.225.103/3210.3.225.103 – 10.3.225.10310.3.225.103
10510.3.225.104/3210.3.225.104 – 10.3.225.10410.3.225.104
10610.3.225.105/3210.3.225.105 – 10.3.225.10510.3.225.105
10710.3.225.106/3210.3.225.106 – 10.3.225.10610.3.225.106
10810.3.225.107/3210.3.225.107 – 10.3.225.10710.3.225.107
10910.3.225.108/3210.3.225.108 – 10.3.225.10810.3.225.108
11010.3.225.109/3210.3.225.109 – 10.3.225.10910.3.225.109
11110.3.225.110/3210.3.225.110 – 10.3.225.11010.3.225.110
11210.3.225.111/3210.3.225.111 – 10.3.225.11110.3.225.111
11310.3.225.112/3210.3.225.112 – 10.3.225.11210.3.225.112
11410.3.225.113/3210.3.225.113 – 10.3.225.11310.3.225.113
11510.3.225.114/3210.3.225.114 – 10.3.225.11410.3.225.114
11610.3.225.115/3210.3.225.115 – 10.3.225.11510.3.225.115
11710.3.225.116/3210.3.225.116 – 10.3.225.11610.3.225.116
11810.3.225.117/3210.3.225.117 – 10.3.225.11710.3.225.117
11910.3.225.118/3210.3.225.118 – 10.3.225.11810.3.225.118
12010.3.225.119/3210.3.225.119 – 10.3.225.11910.3.225.119
12110.3.225.120/3210.3.225.120 – 10.3.225.12010.3.225.120
12210.3.225.121/3210.3.225.121 – 10.3.225.12110.3.225.121
12310.3.225.122/3210.3.225.122 – 10.3.225.12210.3.225.122
12410.3.225.123/3210.3.225.123 – 10.3.225.12310.3.225.123
12510.3.225.124/3210.3.225.124 – 10.3.225.12410.3.225.124
12610.3.225.125/3210.3.225.125 – 10.3.225.12510.3.225.125
12710.3.225.126/3210.3.225.126 – 10.3.225.12610.3.225.126
12810.3.225.127/3210.3.225.127 – 10.3.225.12710.3.225.127
12910.3.225.128/3210.3.225.128 – 10.3.225.12810.3.225.128
13010.3.225.129/3210.3.225.129 – 10.3.225.12910.3.225.129
13110.3.225.130/3210.3.225.130 – 10.3.225.13010.3.225.130
13210.3.225.131/3210.3.225.131 – 10.3.225.13110.3.225.131
13310.3.225.132/3210.3.225.132 – 10.3.225.13210.3.225.132
13410.3.225.133/3210.3.225.133 – 10.3.225.13310.3.225.133
13510.3.225.134/3210.3.225.134 – 10.3.225.13410.3.225.134
13610.3.225.135/3210.3.225.135 – 10.3.225.13510.3.225.135
13710.3.225.136/3210.3.225.136 – 10.3.225.13610.3.225.136
13810.3.225.137/3210.3.225.137 – 10.3.225.13710.3.225.137
13910.3.225.138/3210.3.225.138 – 10.3.225.13810.3.225.138
14010.3.225.139/3210.3.225.139 – 10.3.225.13910.3.225.139
14110.3.225.140/3210.3.225.140 – 10.3.225.14010.3.225.140
14210.3.225.141/3210.3.225.141 – 10.3.225.14110.3.225.141
14310.3.225.142/3210.3.225.142 – 10.3.225.14210.3.225.142
14410.3.225.143/3210.3.225.143 – 10.3.225.14310.3.225.143
14510.3.225.144/3210.3.225.144 – 10.3.225.14410.3.225.144
14610.3.225.145/3210.3.225.145 – 10.3.225.14510.3.225.145
14710.3.225.146/3210.3.225.146 – 10.3.225.14610.3.225.146
14810.3.225.147/3210.3.225.147 – 10.3.225.14710.3.225.147
14910.3.225.148/3210.3.225.148 – 10.3.225.14810.3.225.148
15010.3.225.149/3210.3.225.149 – 10.3.225.14910.3.225.149
15110.3.225.150/3210.3.225.150 – 10.3.225.15010.3.225.150
15210.3.225.151/3210.3.225.151 – 10.3.225.15110.3.225.151
15310.3.225.152/3210.3.225.152 – 10.3.225.15210.3.225.152
15410.3.225.153/3210.3.225.153 – 10.3.225.15310.3.225.153
15510.3.225.154/3210.3.225.154 – 10.3.225.15410.3.225.154
15610.3.225.155/3210.3.225.155 – 10.3.225.15510.3.225.155
15710.3.225.156/3210.3.225.156 – 10.3.225.15610.3.225.156
15810.3.225.157/3210.3.225.157 – 10.3.225.15710.3.225.157
15910.3.225.158/3210.3.225.158 – 10.3.225.15810.3.225.158
16010.3.225.159/3210.3.225.159 – 10.3.225.15910.3.225.159
16110.3.225.160/3210.3.225.160 – 10.3.225.16010.3.225.160
16210.3.225.161/3210.3.225.161 – 10.3.225.16110.3.225.161
16310.3.225.162/3210.3.225.162 – 10.3.225.16210.3.225.162
16410.3.225.163/3210.3.225.163 – 10.3.225.16310.3.225.163
16510.3.225.164/3210.3.225.164 – 10.3.225.16410.3.225.164
16610.3.225.165/3210.3.225.165 – 10.3.225.16510.3.225.165
16710.3.225.166/3210.3.225.166 – 10.3.225.16610.3.225.166
16810.3.225.167/3210.3.225.167 – 10.3.225.16710.3.225.167
16910.3.225.168/3210.3.225.168 – 10.3.225.16810.3.225.168
17010.3.225.169/3210.3.225.169 – 10.3.225.16910.3.225.169
17110.3.225.170/3210.3.225.170 – 10.3.225.17010.3.225.170
17210.3.225.171/3210.3.225.171 – 10.3.225.17110.3.225.171
17310.3.225.172/3210.3.225.172 – 10.3.225.17210.3.225.172
17410.3.225.173/3210.3.225.173 – 10.3.225.17310.3.225.173
17510.3.225.174/3210.3.225.174 – 10.3.225.17410.3.225.174
17610.3.225.175/3210.3.225.175 – 10.3.225.17510.3.225.175
17710.3.225.176/3210.3.225.176 – 10.3.225.17610.3.225.176
17810.3.225.177/3210.3.225.177 – 10.3.225.17710.3.225.177
17910.3.225.178/3210.3.225.178 – 10.3.225.17810.3.225.178
18010.3.225.179/3210.3.225.179 – 10.3.225.17910.3.225.179
18110.3.225.180/3210.3.225.180 – 10.3.225.18010.3.225.180
18210.3.225.181/3210.3.225.181 – 10.3.225.18110.3.225.181
18310.3.225.182/3210.3.225.182 – 10.3.225.18210.3.225.182
18410.3.225.183/3210.3.225.183 – 10.3.225.18310.3.225.183
18510.3.225.184/3210.3.225.184 – 10.3.225.18410.3.225.184
18610.3.225.185/3210.3.225.185 – 10.3.225.18510.3.225.185
18710.3.225.186/3210.3.225.186 – 10.3.225.18610.3.225.186
18810.3.225.187/3210.3.225.187 – 10.3.225.18710.3.225.187
18910.3.225.188/3210.3.225.188 – 10.3.225.18810.3.225.188
19010.3.225.189/3210.3.225.189 – 10.3.225.18910.3.225.189
19110.3.225.190/3210.3.225.190 – 10.3.225.19010.3.225.190
19210.3.225.191/3210.3.225.191 – 10.3.225.19110.3.225.191
19310.3.225.192/3210.3.225.192 – 10.3.225.19210.3.225.192
19410.3.225.193/3210.3.225.193 – 10.3.225.19310.3.225.193
19510.3.225.194/3210.3.225.194 – 10.3.225.19410.3.225.194
19610.3.225.195/3210.3.225.195 – 10.3.225.19510.3.225.195
19710.3.225.196/3210.3.225.196 – 10.3.225.19610.3.225.196
19810.3.225.197/3210.3.225.197 – 10.3.225.19710.3.225.197
19910.3.225.198/3210.3.225.198 – 10.3.225.19810.3.225.198
20010.3.225.199/3210.3.225.199 – 10.3.225.19910.3.225.199
20110.3.225.200/3210.3.225.200 – 10.3.225.20010.3.225.200
20210.3.225.201/3210.3.225.201 – 10.3.225.20110.3.225.201
20310.3.225.202/3210.3.225.202 – 10.3.225.20210.3.225.202
20410.3.225.203/3210.3.225.203 – 10.3.225.20310.3.225.203
20510.3.225.204/3210.3.225.204 – 10.3.225.20410.3.225.204
20610.3.225.205/3210.3.225.205 – 10.3.225.20510.3.225.205
20710.3.225.206/3210.3.225.206 – 10.3.225.20610.3.225.206
20810.3.225.207/3210.3.225.207 – 10.3.225.20710.3.225.207
20910.3.225.208/3210.3.225.208 – 10.3.225.20810.3.225.208
21010.3.225.209/3210.3.225.209 – 10.3.225.20910.3.225.209
21110.3.225.210/3210.3.225.210 – 10.3.225.21010.3.225.210
21210.3.225.211/3210.3.225.211 – 10.3.225.21110.3.225.211
21310.3.225.212/3210.3.225.212 – 10.3.225.21210.3.225.212
21410.3.225.213/3210.3.225.213 – 10.3.225.21310.3.225.213
21510.3.225.214/3210.3.225.214 – 10.3.225.21410.3.225.214
21610.3.225.215/3210.3.225.215 – 10.3.225.21510.3.225.215
21710.3.225.216/3210.3.225.216 – 10.3.225.21610.3.225.216
21810.3.225.217/3210.3.225.217 – 10.3.225.21710.3.225.217
21910.3.225.218/3210.3.225.218 – 10.3.225.21810.3.225.218
22010.3.225.219/3210.3.225.219 – 10.3.225.21910.3.225.219
22110.3.225.220/3210.3.225.220 – 10.3.225.22010.3.225.220
22210.3.225.221/3210.3.225.221 – 10.3.225.22110.3.225.221
22310.3.225.222/3210.3.225.222 – 10.3.225.22210.3.225.222
22410.3.225.223/3210.3.225.223 – 10.3.225.22310.3.225.223
22510.3.225.224/3210.3.225.224 – 10.3.225.22410.3.225.224
22610.3.225.225/3210.3.225.225 – 10.3.225.22510.3.225.225
22710.3.225.226/3210.3.225.226 – 10.3.225.22610.3.225.226
22810.3.225.227/3210.3.225.227 – 10.3.225.22710.3.225.227
22910.3.225.228/3210.3.225.228 – 10.3.225.22810.3.225.228
23010.3.225.229/3210.3.225.229 – 10.3.225.22910.3.225.229
23110.3.225.230/3210.3.225.230 – 10.3.225.23010.3.225.230
23210.3.225.231/3210.3.225.231 – 10.3.225.23110.3.225.231
23310.3.225.232/3210.3.225.232 – 10.3.225.23210.3.225.232
23410.3.225.233/3210.3.225.233 – 10.3.225.23310.3.225.233
23510.3.225.234/3210.3.225.234 – 10.3.225.23410.3.225.234
23610.3.225.235/3210.3.225.235 – 10.3.225.23510.3.225.235
23710.3.225.236/3210.3.225.236 – 10.3.225.23610.3.225.236
23810.3.225.237/3210.3.225.237 – 10.3.225.23710.3.225.237
23910.3.225.238/3210.3.225.238 – 10.3.225.23810.3.225.238
24010.3.225.239/3210.3.225.239 – 10.3.225.23910.3.225.239
24110.3.225.240/3210.3.225.240 – 10.3.225.24010.3.225.240
24210.3.225.241/3210.3.225.241 – 10.3.225.24110.3.225.241
24310.3.225.242/3210.3.225.242 – 10.3.225.24210.3.225.242
24410.3.225.243/3210.3.225.243 – 10.3.225.24310.3.225.243
24510.3.225.244/3210.3.225.244 – 10.3.225.24410.3.225.244
24610.3.225.245/3210.3.225.245 – 10.3.225.24510.3.225.245
24710.3.225.246/3210.3.225.246 – 10.3.225.24610.3.225.246
24810.3.225.247/3210.3.225.247 – 10.3.225.24710.3.225.247
24910.3.225.248/3210.3.225.248 – 10.3.225.24810.3.225.248
25010.3.225.249/3210.3.225.249 – 10.3.225.24910.3.225.249
25110.3.225.250/3210.3.225.250 – 10.3.225.25010.3.225.250
25210.3.225.251/3210.3.225.251 – 10.3.225.25110.3.225.251
25310.3.225.252/3210.3.225.252 – 10.3.225.25210.3.225.252
25410.3.225.253/3210.3.225.253 – 10.3.225.25310.3.225.253
25510.3.225.254/3210.3.225.254 – 10.3.225.25410.3.225.254
25610.3.225.255/3210.3.225.255 – 10.3.225.25510.3.225.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 split →
02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →