Convert integer (decimal) values back to IPv4 addresses
This tool performs the reverse operation of IP to decimal conversion. Given a decimal integer (0 to 4294967295), it computes the corresponding IPv4 address by splitting the 32‑bit number into four octets. This is useful when you have stored IPs as integers in a database and need to display them in human‑readable form, or when working with network math.
The conversion uses bit shifting: each octet is extracted from the decimal value, and the result is presented as a standard dotted‑decimal IP.
All processing is done locally; your data remains private.
Step 1: Enter a decimal integer between 0 and 4294967295.
Step 2: Click "Convert to IP".
Step 3: The IPv4 address appears.
Step 4: Copy the result using the "Copy IP" button.
If the number is out of range, an error will be shown.
Decimal: 3232235777 → IP: 192.168.1.1
Decimal: 167772161 → 10.0.0.1
Decimal: 4294967295 → 255.255.255.255