Calculators
Work out numbers fast, from percentages to units, number bases and subnets.
Answer any percentage question as you type: what is X% of a number, what percent one number is of another, the percentage increase or decrease between two values, a number raised or lowered by a percent, and the whole behind a part. Every result has a copy button.
Tools that also have to do with calculators
These tools have their home in another category but fit here too.
Work out an IPv4 or IPv6 network from an address with a prefix or netmask: network and broadcast addresses, usable host range, subnet mask, wildcard mask and address type. Adjust the prefix with a slider, read the binary breakdown, and split the network into smaller subnets.
Convert numbers between binary, octal, decimal, hexadecimal and any base up to 36. Type into any field and the others update as you go. Handles huge integers without losing precision and accepts 0x, 0b and 0o prefixes.
Convert between common units of length, mass, temperature, area, volume, speed, pressure, energy, power, time, data, angle and frequency, from millimeters to light-years. Pick a unit, type a value and read the result with as many decimals as you want.
Enter a salary as an hourly, monthly or yearly figure and the rest fill in for you, including what you actually earn per second, minute, hour and working day. Set your currency and adjust your hours per day, days per week and weeks per year.