Technology Calculators
AI Token Calculator
Estimate the token count of a block of text using the character and word-based approximations LLM providers publish, before pricing it with a cost calculator.
Aspect Ratio Calculator
Simplify a width and height to their reduced aspect ratio, or solve for a missing width or height once a target ratio like 16:9 or 4:3 is fixed exactly.
Audio Bitrate Calculator
Calculate uncompressed audio bitrate from sample rate, bit depth, and channel count, or convert between bitrate and file size for any audio duration length.
AWS EC2 Cost Calculator
Estimate the monthly cost of an AWS EC2 instance from its hourly rate and hours run, plus attached EBS storage, using current rates you supply yourself.
Azure VM Cost Calculator
Estimate the monthly cost of an Azure virtual machine from its hourly rate and hours run, plus attached managed disk storage, using your own current rates.
Bandwidth Calculator
Convert between bandwidth units, calculate the transfer time for a file at a given connection speed, or find the bandwidth needed to hit a target time.
Bandwidth Usage Calculator
Project daily, monthly, and yearly data usage from a sustained bandwidth rate and hours of use per day, useful for checking against a monthly data cap.
Battery Life Calculator
Estimate a battery's runtime by dividing its rated capacity in mAh or Wh by the device's current or power draw, adjusted for a conversion efficiency factor.
Binary Calculator
Convert a value between binary, octal, decimal, and hexadecimal, or perform binary arithmetic and bitwise AND, OR, and XOR operations on two numbers directly.
Capacitor Charge Calculator
Calculate the electrical charge in coulombs and energy in joules stored by a capacitor from its capacitance and voltage rating using standard formulas.
Charging Time Calculator
Estimate real-world battery charging time from battery capacity, charger current, start and target charge percentage, and a charging efficiency factor.
Claude Token Cost Calculator
Calculate the cost of an Anthropic Claude API call from input and output token counts, using built-in model rates or a custom price you enter yourself.
Cloud Cost Calculator
Estimate a cloud workload's total monthly cost by combining instance compute time, storage, and data transfer charges using the rates that you supply.
Cloud Storage Calculator
Calculate the monthly and total cost of cloud storage from a storage amount, a per-GB rate, and a duration in months, using the decimal GB convention.
Download Time Calculator
Calculate how long a file download will take from its size and your connection speed, converting between the bit-based speed and byte-based file size.
File Size Calculator
Convert a file size between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes under either the binary or decimal unit convention you pick.
Frame Rate Calculator
Convert between frame rate, duration, and total frame count for video and animation, solving for whichever value is missing from the other two figures.
Gemini Token Cost Calculator
Calculate the cost of a Google Gemini API call from input and output token counts, using built-in model rates or a custom price you enter yourself directly.
Google Cloud Pricing Calculator
Estimate the monthly cost of a Google Cloud Compute Engine instance from its hourly rate and hours run, plus its attached persistent disk storage rate.
IP Subnet Calculator
Calculate an IPv4 network's address, broadcast address, wildcard mask, and usable host range from an IP address and its subnet mask or CIDR prefix length.
Monitor PPI Calculator
Calculate a monitor's pixel density in PPI from its resolution and diagonal screen size, showing exactly how sharp the display will look at that size.
OpenAI Token Cost Calculator
Calculate the cost of an OpenAI API call from input and output token counts, using built-in model rates or a custom price you enter yourself directly.
Pixel Aspect Ratio Calculator
Calculate a video's pixel aspect ratio from its storage resolution and intended display ratio, or recover the display ratio from a known PAR value directly.
Pixel Density Calculator
Calculate a screen's pixel density in PPI from its resolution and diagonal size, the figure that determines how sharp text and images actually appear.
QR Code Capacity Calculator
Look up the maximum alphanumeric character capacity for a QR code version and error correction level from the official ISO/IEC 18004 specification table.
RAID Capacity Calculator
Calculate the usable storage capacity and fault tolerance of a RAID 0, 1, 5, 6, or 10 array from the number of disks and the size of each individual disk.
Resistor Color Code Calculator
Decode a 4-band or 5-band resistor color code into its exact resistance value and tolerance percentage using the standard electronics color code system.
Screen Resolution Calculator
Calculate the total pixel count and simplified aspect ratio of a resolution, and check it against recognized standard names like 1080p, QHD, and 4K UHD.
Screen Size Calculator
Convert between a screen's diagonal size, pixel resolution, and aspect ratio, solving for the physical width, height, or pixel density that you need to know.
SSD Lifespan Calculator
Estimate how many years an SSD will last before reaching its rated endurance, based on its manufacturer TBW rating and your average daily data written.
Storage Calculator
Convert between bits, bytes, and standard storage units like KB, MB, GB, and TB under either the binary (1024-based) or decimal (1000-based) convention.
Time Complexity Calculator
Estimate the operation count and wall-clock time for a Big-O complexity class at a given input size, from O(1) and O(log n) up through O(n!) and O(2^n).
Video Bitrate Calculator
Calculate the video bitrate needed to hit a target file size for a given duration, after subtracting the audio track's share of the total bitrate used.
Tech Runs on Numbers Hiding in Plain Sight
Storage capacity, bandwidth, battery life, and cloud costs all come down to units and conversion factors that are easy to get subtly wrong. These thirty-plus calculators cover computing, storage, and cloud cost math.
Popular Technology Calculators
- Bandwidth Calculator — converts data size and available bandwidth into expected transfer time.
- RAID Capacity Calculator — calculates usable storage across common RAID configurations.
- IP Subnet Calculator — calculates subnet ranges, host counts, and broadcast addresses from a CIDR block.
Related: Web Development Calculators, Cybersecurity Calculators.