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)10.84.201.0/24
network10.84.201.0/24
broadcast10.84.201.255
first host10.84.201.1
last host10.84.201.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.84.201.0/24
address00001010.01010100.11001001.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01010100.11001001.00000000
broadcast00001010.01010100.11001001.11111111
green = network part, grey = host part
hex0x0a54c900
decimal173328640
reverse dns0.201.84.10.in-addr.arpa
ipv4-mapped::ffff:a54:c900

/24 split into /32 · 256 subnets

close ×
#networkhost rangebroadcast
110.84.201.0/3210.84.201.0 – 10.84.201.010.84.201.0
210.84.201.1/3210.84.201.1 – 10.84.201.110.84.201.1
310.84.201.2/3210.84.201.2 – 10.84.201.210.84.201.2
410.84.201.3/3210.84.201.3 – 10.84.201.310.84.201.3
510.84.201.4/3210.84.201.4 – 10.84.201.410.84.201.4
610.84.201.5/3210.84.201.5 – 10.84.201.510.84.201.5
710.84.201.6/3210.84.201.6 – 10.84.201.610.84.201.6
810.84.201.7/3210.84.201.7 – 10.84.201.710.84.201.7
910.84.201.8/3210.84.201.8 – 10.84.201.810.84.201.8
1010.84.201.9/3210.84.201.9 – 10.84.201.910.84.201.9
1110.84.201.10/3210.84.201.10 – 10.84.201.1010.84.201.10
1210.84.201.11/3210.84.201.11 – 10.84.201.1110.84.201.11
1310.84.201.12/3210.84.201.12 – 10.84.201.1210.84.201.12
1410.84.201.13/3210.84.201.13 – 10.84.201.1310.84.201.13
1510.84.201.14/3210.84.201.14 – 10.84.201.1410.84.201.14
1610.84.201.15/3210.84.201.15 – 10.84.201.1510.84.201.15
1710.84.201.16/3210.84.201.16 – 10.84.201.1610.84.201.16
1810.84.201.17/3210.84.201.17 – 10.84.201.1710.84.201.17
1910.84.201.18/3210.84.201.18 – 10.84.201.1810.84.201.18
2010.84.201.19/3210.84.201.19 – 10.84.201.1910.84.201.19
2110.84.201.20/3210.84.201.20 – 10.84.201.2010.84.201.20
2210.84.201.21/3210.84.201.21 – 10.84.201.2110.84.201.21
2310.84.201.22/3210.84.201.22 – 10.84.201.2210.84.201.22
2410.84.201.23/3210.84.201.23 – 10.84.201.2310.84.201.23
2510.84.201.24/3210.84.201.24 – 10.84.201.2410.84.201.24
2610.84.201.25/3210.84.201.25 – 10.84.201.2510.84.201.25
2710.84.201.26/3210.84.201.26 – 10.84.201.2610.84.201.26
2810.84.201.27/3210.84.201.27 – 10.84.201.2710.84.201.27
2910.84.201.28/3210.84.201.28 – 10.84.201.2810.84.201.28
3010.84.201.29/3210.84.201.29 – 10.84.201.2910.84.201.29
3110.84.201.30/3210.84.201.30 – 10.84.201.3010.84.201.30
3210.84.201.31/3210.84.201.31 – 10.84.201.3110.84.201.31
3310.84.201.32/3210.84.201.32 – 10.84.201.3210.84.201.32
3410.84.201.33/3210.84.201.33 – 10.84.201.3310.84.201.33
3510.84.201.34/3210.84.201.34 – 10.84.201.3410.84.201.34
3610.84.201.35/3210.84.201.35 – 10.84.201.3510.84.201.35
3710.84.201.36/3210.84.201.36 – 10.84.201.3610.84.201.36
3810.84.201.37/3210.84.201.37 – 10.84.201.3710.84.201.37
3910.84.201.38/3210.84.201.38 – 10.84.201.3810.84.201.38
4010.84.201.39/3210.84.201.39 – 10.84.201.3910.84.201.39
4110.84.201.40/3210.84.201.40 – 10.84.201.4010.84.201.40
4210.84.201.41/3210.84.201.41 – 10.84.201.4110.84.201.41
4310.84.201.42/3210.84.201.42 – 10.84.201.4210.84.201.42
4410.84.201.43/3210.84.201.43 – 10.84.201.4310.84.201.43
4510.84.201.44/3210.84.201.44 – 10.84.201.4410.84.201.44
4610.84.201.45/3210.84.201.45 – 10.84.201.4510.84.201.45
4710.84.201.46/3210.84.201.46 – 10.84.201.4610.84.201.46
4810.84.201.47/3210.84.201.47 – 10.84.201.4710.84.201.47
4910.84.201.48/3210.84.201.48 – 10.84.201.4810.84.201.48
5010.84.201.49/3210.84.201.49 – 10.84.201.4910.84.201.49
5110.84.201.50/3210.84.201.50 – 10.84.201.5010.84.201.50
5210.84.201.51/3210.84.201.51 – 10.84.201.5110.84.201.51
5310.84.201.52/3210.84.201.52 – 10.84.201.5210.84.201.52
5410.84.201.53/3210.84.201.53 – 10.84.201.5310.84.201.53
5510.84.201.54/3210.84.201.54 – 10.84.201.5410.84.201.54
5610.84.201.55/3210.84.201.55 – 10.84.201.5510.84.201.55
5710.84.201.56/3210.84.201.56 – 10.84.201.5610.84.201.56
5810.84.201.57/3210.84.201.57 – 10.84.201.5710.84.201.57
5910.84.201.58/3210.84.201.58 – 10.84.201.5810.84.201.58
6010.84.201.59/3210.84.201.59 – 10.84.201.5910.84.201.59
6110.84.201.60/3210.84.201.60 – 10.84.201.6010.84.201.60
6210.84.201.61/3210.84.201.61 – 10.84.201.6110.84.201.61
6310.84.201.62/3210.84.201.62 – 10.84.201.6210.84.201.62
6410.84.201.63/3210.84.201.63 – 10.84.201.6310.84.201.63
6510.84.201.64/3210.84.201.64 – 10.84.201.6410.84.201.64
6610.84.201.65/3210.84.201.65 – 10.84.201.6510.84.201.65
6710.84.201.66/3210.84.201.66 – 10.84.201.6610.84.201.66
6810.84.201.67/3210.84.201.67 – 10.84.201.6710.84.201.67
6910.84.201.68/3210.84.201.68 – 10.84.201.6810.84.201.68
7010.84.201.69/3210.84.201.69 – 10.84.201.6910.84.201.69
7110.84.201.70/3210.84.201.70 – 10.84.201.7010.84.201.70
7210.84.201.71/3210.84.201.71 – 10.84.201.7110.84.201.71
7310.84.201.72/3210.84.201.72 – 10.84.201.7210.84.201.72
7410.84.201.73/3210.84.201.73 – 10.84.201.7310.84.201.73
7510.84.201.74/3210.84.201.74 – 10.84.201.7410.84.201.74
7610.84.201.75/3210.84.201.75 – 10.84.201.7510.84.201.75
7710.84.201.76/3210.84.201.76 – 10.84.201.7610.84.201.76
7810.84.201.77/3210.84.201.77 – 10.84.201.7710.84.201.77
7910.84.201.78/3210.84.201.78 – 10.84.201.7810.84.201.78
8010.84.201.79/3210.84.201.79 – 10.84.201.7910.84.201.79
8110.84.201.80/3210.84.201.80 – 10.84.201.8010.84.201.80
8210.84.201.81/3210.84.201.81 – 10.84.201.8110.84.201.81
8310.84.201.82/3210.84.201.82 – 10.84.201.8210.84.201.82
8410.84.201.83/3210.84.201.83 – 10.84.201.8310.84.201.83
8510.84.201.84/3210.84.201.84 – 10.84.201.8410.84.201.84
8610.84.201.85/3210.84.201.85 – 10.84.201.8510.84.201.85
8710.84.201.86/3210.84.201.86 – 10.84.201.8610.84.201.86
8810.84.201.87/3210.84.201.87 – 10.84.201.8710.84.201.87
8910.84.201.88/3210.84.201.88 – 10.84.201.8810.84.201.88
9010.84.201.89/3210.84.201.89 – 10.84.201.8910.84.201.89
9110.84.201.90/3210.84.201.90 – 10.84.201.9010.84.201.90
9210.84.201.91/3210.84.201.91 – 10.84.201.9110.84.201.91
9310.84.201.92/3210.84.201.92 – 10.84.201.9210.84.201.92
9410.84.201.93/3210.84.201.93 – 10.84.201.9310.84.201.93
9510.84.201.94/3210.84.201.94 – 10.84.201.9410.84.201.94
9610.84.201.95/3210.84.201.95 – 10.84.201.9510.84.201.95
9710.84.201.96/3210.84.201.96 – 10.84.201.9610.84.201.96
9810.84.201.97/3210.84.201.97 – 10.84.201.9710.84.201.97
9910.84.201.98/3210.84.201.98 – 10.84.201.9810.84.201.98
10010.84.201.99/3210.84.201.99 – 10.84.201.9910.84.201.99
10110.84.201.100/3210.84.201.100 – 10.84.201.10010.84.201.100
10210.84.201.101/3210.84.201.101 – 10.84.201.10110.84.201.101
10310.84.201.102/3210.84.201.102 – 10.84.201.10210.84.201.102
10410.84.201.103/3210.84.201.103 – 10.84.201.10310.84.201.103
10510.84.201.104/3210.84.201.104 – 10.84.201.10410.84.201.104
10610.84.201.105/3210.84.201.105 – 10.84.201.10510.84.201.105
10710.84.201.106/3210.84.201.106 – 10.84.201.10610.84.201.106
10810.84.201.107/3210.84.201.107 – 10.84.201.10710.84.201.107
10910.84.201.108/3210.84.201.108 – 10.84.201.10810.84.201.108
11010.84.201.109/3210.84.201.109 – 10.84.201.10910.84.201.109
11110.84.201.110/3210.84.201.110 – 10.84.201.11010.84.201.110
11210.84.201.111/3210.84.201.111 – 10.84.201.11110.84.201.111
11310.84.201.112/3210.84.201.112 – 10.84.201.11210.84.201.112
11410.84.201.113/3210.84.201.113 – 10.84.201.11310.84.201.113
11510.84.201.114/3210.84.201.114 – 10.84.201.11410.84.201.114
11610.84.201.115/3210.84.201.115 – 10.84.201.11510.84.201.115
11710.84.201.116/3210.84.201.116 – 10.84.201.11610.84.201.116
11810.84.201.117/3210.84.201.117 – 10.84.201.11710.84.201.117
11910.84.201.118/3210.84.201.118 – 10.84.201.11810.84.201.118
12010.84.201.119/3210.84.201.119 – 10.84.201.11910.84.201.119
12110.84.201.120/3210.84.201.120 – 10.84.201.12010.84.201.120
12210.84.201.121/3210.84.201.121 – 10.84.201.12110.84.201.121
12310.84.201.122/3210.84.201.122 – 10.84.201.12210.84.201.122
12410.84.201.123/3210.84.201.123 – 10.84.201.12310.84.201.123
12510.84.201.124/3210.84.201.124 – 10.84.201.12410.84.201.124
12610.84.201.125/3210.84.201.125 – 10.84.201.12510.84.201.125
12710.84.201.126/3210.84.201.126 – 10.84.201.12610.84.201.126
12810.84.201.127/3210.84.201.127 – 10.84.201.12710.84.201.127
12910.84.201.128/3210.84.201.128 – 10.84.201.12810.84.201.128
13010.84.201.129/3210.84.201.129 – 10.84.201.12910.84.201.129
13110.84.201.130/3210.84.201.130 – 10.84.201.13010.84.201.130
13210.84.201.131/3210.84.201.131 – 10.84.201.13110.84.201.131
13310.84.201.132/3210.84.201.132 – 10.84.201.13210.84.201.132
13410.84.201.133/3210.84.201.133 – 10.84.201.13310.84.201.133
13510.84.201.134/3210.84.201.134 – 10.84.201.13410.84.201.134
13610.84.201.135/3210.84.201.135 – 10.84.201.13510.84.201.135
13710.84.201.136/3210.84.201.136 – 10.84.201.13610.84.201.136
13810.84.201.137/3210.84.201.137 – 10.84.201.13710.84.201.137
13910.84.201.138/3210.84.201.138 – 10.84.201.13810.84.201.138
14010.84.201.139/3210.84.201.139 – 10.84.201.13910.84.201.139
14110.84.201.140/3210.84.201.140 – 10.84.201.14010.84.201.140
14210.84.201.141/3210.84.201.141 – 10.84.201.14110.84.201.141
14310.84.201.142/3210.84.201.142 – 10.84.201.14210.84.201.142
14410.84.201.143/3210.84.201.143 – 10.84.201.14310.84.201.143
14510.84.201.144/3210.84.201.144 – 10.84.201.14410.84.201.144
14610.84.201.145/3210.84.201.145 – 10.84.201.14510.84.201.145
14710.84.201.146/3210.84.201.146 – 10.84.201.14610.84.201.146
14810.84.201.147/3210.84.201.147 – 10.84.201.14710.84.201.147
14910.84.201.148/3210.84.201.148 – 10.84.201.14810.84.201.148
15010.84.201.149/3210.84.201.149 – 10.84.201.14910.84.201.149
15110.84.201.150/3210.84.201.150 – 10.84.201.15010.84.201.150
15210.84.201.151/3210.84.201.151 – 10.84.201.15110.84.201.151
15310.84.201.152/3210.84.201.152 – 10.84.201.15210.84.201.152
15410.84.201.153/3210.84.201.153 – 10.84.201.15310.84.201.153
15510.84.201.154/3210.84.201.154 – 10.84.201.15410.84.201.154
15610.84.201.155/3210.84.201.155 – 10.84.201.15510.84.201.155
15710.84.201.156/3210.84.201.156 – 10.84.201.15610.84.201.156
15810.84.201.157/3210.84.201.157 – 10.84.201.15710.84.201.157
15910.84.201.158/3210.84.201.158 – 10.84.201.15810.84.201.158
16010.84.201.159/3210.84.201.159 – 10.84.201.15910.84.201.159
16110.84.201.160/3210.84.201.160 – 10.84.201.16010.84.201.160
16210.84.201.161/3210.84.201.161 – 10.84.201.16110.84.201.161
16310.84.201.162/3210.84.201.162 – 10.84.201.16210.84.201.162
16410.84.201.163/3210.84.201.163 – 10.84.201.16310.84.201.163
16510.84.201.164/3210.84.201.164 – 10.84.201.16410.84.201.164
16610.84.201.165/3210.84.201.165 – 10.84.201.16510.84.201.165
16710.84.201.166/3210.84.201.166 – 10.84.201.16610.84.201.166
16810.84.201.167/3210.84.201.167 – 10.84.201.16710.84.201.167
16910.84.201.168/3210.84.201.168 – 10.84.201.16810.84.201.168
17010.84.201.169/3210.84.201.169 – 10.84.201.16910.84.201.169
17110.84.201.170/3210.84.201.170 – 10.84.201.17010.84.201.170
17210.84.201.171/3210.84.201.171 – 10.84.201.17110.84.201.171
17310.84.201.172/3210.84.201.172 – 10.84.201.17210.84.201.172
17410.84.201.173/3210.84.201.173 – 10.84.201.17310.84.201.173
17510.84.201.174/3210.84.201.174 – 10.84.201.17410.84.201.174
17610.84.201.175/3210.84.201.175 – 10.84.201.17510.84.201.175
17710.84.201.176/3210.84.201.176 – 10.84.201.17610.84.201.176
17810.84.201.177/3210.84.201.177 – 10.84.201.17710.84.201.177
17910.84.201.178/3210.84.201.178 – 10.84.201.17810.84.201.178
18010.84.201.179/3210.84.201.179 – 10.84.201.17910.84.201.179
18110.84.201.180/3210.84.201.180 – 10.84.201.18010.84.201.180
18210.84.201.181/3210.84.201.181 – 10.84.201.18110.84.201.181
18310.84.201.182/3210.84.201.182 – 10.84.201.18210.84.201.182
18410.84.201.183/3210.84.201.183 – 10.84.201.18310.84.201.183
18510.84.201.184/3210.84.201.184 – 10.84.201.18410.84.201.184
18610.84.201.185/3210.84.201.185 – 10.84.201.18510.84.201.185
18710.84.201.186/3210.84.201.186 – 10.84.201.18610.84.201.186
18810.84.201.187/3210.84.201.187 – 10.84.201.18710.84.201.187
18910.84.201.188/3210.84.201.188 – 10.84.201.18810.84.201.188
19010.84.201.189/3210.84.201.189 – 10.84.201.18910.84.201.189
19110.84.201.190/3210.84.201.190 – 10.84.201.19010.84.201.190
19210.84.201.191/3210.84.201.191 – 10.84.201.19110.84.201.191
19310.84.201.192/3210.84.201.192 – 10.84.201.19210.84.201.192
19410.84.201.193/3210.84.201.193 – 10.84.201.19310.84.201.193
19510.84.201.194/3210.84.201.194 – 10.84.201.19410.84.201.194
19610.84.201.195/3210.84.201.195 – 10.84.201.19510.84.201.195
19710.84.201.196/3210.84.201.196 – 10.84.201.19610.84.201.196
19810.84.201.197/3210.84.201.197 – 10.84.201.19710.84.201.197
19910.84.201.198/3210.84.201.198 – 10.84.201.19810.84.201.198
20010.84.201.199/3210.84.201.199 – 10.84.201.19910.84.201.199
20110.84.201.200/3210.84.201.200 – 10.84.201.20010.84.201.200
20210.84.201.201/3210.84.201.201 – 10.84.201.20110.84.201.201
20310.84.201.202/3210.84.201.202 – 10.84.201.20210.84.201.202
20410.84.201.203/3210.84.201.203 – 10.84.201.20310.84.201.203
20510.84.201.204/3210.84.201.204 – 10.84.201.20410.84.201.204
20610.84.201.205/3210.84.201.205 – 10.84.201.20510.84.201.205
20710.84.201.206/3210.84.201.206 – 10.84.201.20610.84.201.206
20810.84.201.207/3210.84.201.207 – 10.84.201.20710.84.201.207
20910.84.201.208/3210.84.201.208 – 10.84.201.20810.84.201.208
21010.84.201.209/3210.84.201.209 – 10.84.201.20910.84.201.209
21110.84.201.210/3210.84.201.210 – 10.84.201.21010.84.201.210
21210.84.201.211/3210.84.201.211 – 10.84.201.21110.84.201.211
21310.84.201.212/3210.84.201.212 – 10.84.201.21210.84.201.212
21410.84.201.213/3210.84.201.213 – 10.84.201.21310.84.201.213
21510.84.201.214/3210.84.201.214 – 10.84.201.21410.84.201.214
21610.84.201.215/3210.84.201.215 – 10.84.201.21510.84.201.215
21710.84.201.216/3210.84.201.216 – 10.84.201.21610.84.201.216
21810.84.201.217/3210.84.201.217 – 10.84.201.21710.84.201.217
21910.84.201.218/3210.84.201.218 – 10.84.201.21810.84.201.218
22010.84.201.219/3210.84.201.219 – 10.84.201.21910.84.201.219
22110.84.201.220/3210.84.201.220 – 10.84.201.22010.84.201.220
22210.84.201.221/3210.84.201.221 – 10.84.201.22110.84.201.221
22310.84.201.222/3210.84.201.222 – 10.84.201.22210.84.201.222
22410.84.201.223/3210.84.201.223 – 10.84.201.22310.84.201.223
22510.84.201.224/3210.84.201.224 – 10.84.201.22410.84.201.224
22610.84.201.225/3210.84.201.225 – 10.84.201.22510.84.201.225
22710.84.201.226/3210.84.201.226 – 10.84.201.22610.84.201.226
22810.84.201.227/3210.84.201.227 – 10.84.201.22710.84.201.227
22910.84.201.228/3210.84.201.228 – 10.84.201.22810.84.201.228
23010.84.201.229/3210.84.201.229 – 10.84.201.22910.84.201.229
23110.84.201.230/3210.84.201.230 – 10.84.201.23010.84.201.230
23210.84.201.231/3210.84.201.231 – 10.84.201.23110.84.201.231
23310.84.201.232/3210.84.201.232 – 10.84.201.23210.84.201.232
23410.84.201.233/3210.84.201.233 – 10.84.201.23310.84.201.233
23510.84.201.234/3210.84.201.234 – 10.84.201.23410.84.201.234
23610.84.201.235/3210.84.201.235 – 10.84.201.23510.84.201.235
23710.84.201.236/3210.84.201.236 – 10.84.201.23610.84.201.236
23810.84.201.237/3210.84.201.237 – 10.84.201.23710.84.201.237
23910.84.201.238/3210.84.201.238 – 10.84.201.23810.84.201.238
24010.84.201.239/3210.84.201.239 – 10.84.201.23910.84.201.239
24110.84.201.240/3210.84.201.240 – 10.84.201.24010.84.201.240
24210.84.201.241/3210.84.201.241 – 10.84.201.24110.84.201.241
24310.84.201.242/3210.84.201.242 – 10.84.201.24210.84.201.242
24410.84.201.243/3210.84.201.243 – 10.84.201.24310.84.201.243
24510.84.201.244/3210.84.201.244 – 10.84.201.24410.84.201.244
24610.84.201.245/3210.84.201.245 – 10.84.201.24510.84.201.245
24710.84.201.246/3210.84.201.246 – 10.84.201.24610.84.201.246
24810.84.201.247/3210.84.201.247 – 10.84.201.24710.84.201.247
24910.84.201.248/3210.84.201.248 – 10.84.201.24810.84.201.248
25010.84.201.249/3210.84.201.249 – 10.84.201.24910.84.201.249
25110.84.201.250/3210.84.201.250 – 10.84.201.25010.84.201.250
25210.84.201.251/3210.84.201.251 – 10.84.201.25110.84.201.251
25310.84.201.252/3210.84.201.252 – 10.84.201.25210.84.201.252
25410.84.201.253/3210.84.201.253 – 10.84.201.25310.84.201.253
25510.84.201.254/3210.84.201.254 – 10.84.201.25410.84.201.254
25610.84.201.255/3210.84.201.255 – 10.84.201.25510.84.201.255
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 →