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
33
Topics: All Time & Date (1) Randomness (1) Games (6) Tech (16)
33 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
19,028 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
21,658 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
16,679 4.2 1 min
Other

Age in Days Calculator

Compute a person's (or anything's) precise age in days, weeks, whole months, whole years, and total hours from a date of...

basic
13,277 4.1 1 min
Other / Games

RPG XP Curve Calculator

Compute the XP needed to reach a target level on a quadratic XP curve, XP(n) = a · (n − 1)^p + b · (n − 1). Defaults rep...

basic
12,944 4.2 1 min
Other

Unix Timestamp Converter

Convert in either direction between Unix timestamps (seconds since 1970-01-01 UTC) and human-readable UTC date/time stri...

basic
10,777 4.6 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 / Games

MTG Mana Base Calculator

Estimate the number of lands of each color needed in a 60-card Magic: The Gathering deck from the number of coloured pip...

basic
3,051 4.4 1 min
Other

Week of Year Calculator

Compute the ISO 8601 week-of-year, ISO week-numbering year, day-of-year, calendar quarter, and the date range of the con...

basic
23,628 4.5 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
10,889 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 / Randomness

Random Number Generator

Generate one or more random integers in a chosen range, with optional uniqueness and optional sorting.

basic
20,662 5.0 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
6,489 4.8 1 min
Other

Dog Years Calculator

Estimate the human-equivalent age of a dog using a size-aware formula that accounts for breed weight class.

basic
22,308 4.4 1 min
Other

GPA Calculator

Compute a weighted grade-point average from a list of courses with credit hours and 4.0-scale grade points.

basic
21,197 4.0 1 min