Other calculators

Useful calculators that don't fit anywhere else.

Time and date math, randomness, passwords, games, and miscellaneous calculators that are genuinely useful but don't fit a single category.

Calculators
16
Topics: All Time & Date (1) Randomness (1) Games (6) Tech (16)
16 results
Other / Tech

Password Entropy Calculator

Compute the bits of entropy of a password from the size of the character set drawn from (lowercase, uppercase, digits, s...

basic
19,027 4.4 1 min
Other / Tech

Video Bitrate Calculator

Estimate the recommended H.264 video bitrate for a given resolution, frame rate, and motion-complexity factor (rule-of-t...

basic
21,657 4.1 1 min
Other / Tech

Image File Size Calculator

Compute the uncompressed file size of a raster image from its pixel dimensions and bit depth (channels × bits per channe...

basic
16,678 4.2 1 min
Other / Tech

Quilt Binding Calculator

Compute the inches of binding required (perimeter + overlap), the number of 2½-inch strips needed cut from a 42-inch wid...

basic
4,538 4.3 1 min
Other / Tech

Reading Time Calculator

Compute the time required to read a piece of text from the word count and your reading speed in words per minute. Report...

basic
21,473 4.4 1 min
Other / Tech

IPv4 Subnet Calculator

Enter a CIDR notation IPv4 address and get the network address, broadcast address, usable host range, subnet mask, and h...

basic
12,119 4.1 1 min
Other / Tech

Download Time Calculator

Estimate how long a download will take given a file size in MB or GB and an internet connection speed in Mbps.

basic
10,888 4.0 1 min
Other / Tech

Hash Generator

Compute MD5, SHA-1, SHA-256, SHA-512, and CRC-32 digests for any input string. Useful for verifying checksums against pu...

basic
3,838 4.0 1 min
Other / Tech

Base64 Converter

Encode any UTF-8 text to Base64 or decode a Base64 string back to text. The mode is auto-detected from the input but can...

basic
6,488 4.8 1 min
Other / Tech

Roman Numeral Converter

Convert between Arabic numbers (1–3,999) and Roman numerals — the calculator detects the direction automatically.

basic
1,403 4.9 1 min
Other / Tech

Color Converter

Convert a color between hex, RGB, and HSL representations and read its relative luminance for accessibility.

basic
18,647 4.3 1 min