Technology and digital Calculators: All 145 Tools
Every technology and digital calculator on CalculatorHub, 145 in total, listed alphabetically. Each one is free, works in your browser with no signup, and shows the method it uses. Where a result depends on an external rate, standard or dataset, the supporting source is shown on the page with the date it was last checked. Prefer to search across all 6,718 calculators? Use the tool finder.
- 3D Printing Filament Calculator: Estimate Filament Use and Cost
- 3D Printing Time Calculator: Estimate Print Duration
- Allowed Downtime per SLA Calculator 2026: Uptime to Minutes
- Amdahl's Law Speedup Calculator: Parallel Limit
- API Rate Limit Calculator: Requests Per Second and Window
- ASCII to Text Calculator
- Aspect Ratio Resize Calculator
- Audio Buffer Latency Calculator: Buffer Size to ms
- Average Code Length Calculator
- Average Disk Access Time Calculator
- Backup Storage Calculator: Estimate Backup Size and Retention
- Backup Window Time Calculator: Will It Finish?
- Bandwidth Calculator: Monthly Data Usage and Internet Plan Estimator
- Bandwidth Delay Product Calculator: BDP and TCP Window
- Bandwidth-Delay Product Calculator: TCP Window
- Base64 Encoded Size Calculator: Overhead Bytes
- Base64 Size Overhead Calculator: Encoded Size and Growth
- Baud Rate Calculator
- Big-O Growth (n log n) Calculator
- Big-O Growth Comparison Calculator: Operations
- Binary Fraction to Decimal Calculator
- Binary Search Steps Calculator
- Binary to Decimal Converter: Base 2 to Base 10
- Bit Error Rate Calculator
- Bit Shift Calculator
- Bitwise AND Calculator
- Bitwise OR Calculator
- Bitwise XOR Calculator
- Cable Latency Calculator: Signal Propagation Delay
- Cache Hit Ratio Calculator: Hit Rate and Effective Latency
- Cache Lines Count Calculator
- CDN Bandwidth Calculator: Estimate Content Delivery Network Usage
- Character Count Calculator: Twitter, LinkedIn, Instagram, Meta
- CIDR Calculator
- CIDR Range Calculator: Hosts, Block Size, Mask
- Cloud Storage Cost Estimator: Monthly and Annual Cloud Storage Costs
- CMYK to RGB Calculator
- CMYK to RGB Converter: Print to Screen Color
- Color Contrast Ratio Calculator: WCAG AA and AAA Compliance
- Combination Count (nCr) Calculator
- Cosine Similarity Calculator
- CRC Calculator 2026: CRC-8 Checksum of an ASCII String
- Data Transfer Speed Calculator: Download Time From Mbps
- Database Storage Calculator: Estimate DB Size Requirements
- Digital Storage Converter: Convert Between Storage Units
- Download Time Calculator: How Long to Download a File?
- Downtime Cost Calculator - Cost of IT and System Downtime
- Downtime Minutes Calculator: SLA Downtime Allowance
- Endianness byte-swap (16-bit) Calculator
- Energy Storage Sizing Calculator: Grid-Scale and Commercial Storage
- Entropy Calculator: Entropy Change of Reactions and Processes
- Erlang B Blocking Calculator: Call Blocking Rate
- Ethernet Cable Length Calculator: Maximum Run Distance by Category
- File Size Calculator: Bits, Bytes, KB, MB, GB, TB Converter
- File Transfer Time Calculator: Download Duration
- Filesystem Overhead Calculator: Cluster Slack
- Fixed-point Resolution Calculator
- Floating Point Calculator: IEEE 754 Single Precision
- Floating Point Epsilon Calculator
- Floating Point Precision Calculator: IEEE 754
- Floating Point to Binary Calculator 2026: IEEE 754 Single Bits
- Frame Rate Calculator: Frames, Duration and Time
- Frame Rate File Size Calculator: Video Storage
- GPU VRAM Requirement Calculator: Model Memory
- Gustafson's Law Speedup Calculator: Scaled Parallel
- Hamming Code Calculator 2026: Encode 4 Data Bits to 7
- Hamming Distance Calculator
- Hash Checksum Calculator: djb2 Hash of Text
- Hex to Binary Calculator
- Hex to Binary Converter: Base 16 to Base 2
- Hex to RGB Calculator
- Hosts per Subnet Calculator
- HSL to RGB (grayscale check) Calculator
- IEEE 754 Double Calculator 2026: 64-bit Floating Point Bits
- IEEE 754 Single Precision Range Calculator
- IOPS Calculator
- IP Subnet Calculator: CIDR, Mask, Hosts, Range
- IPv6 Subnet Count Calculator
- Jaccard Index Calculator
- Levenshtein Distance Calculator
- Log Storage Retention Calculator: Capacity Sizing
- MAC Address Calculator 2026: OUI, NIC and Address Bits
- Machine Downtime Cost Calculator: Unplanned Stoppage Cost
- Memory Bandwidth Calculator
- Modular Hashing Calculator: Key Mod Table Size
- Monitor Resolution Calculator: PPI, Aspect, Megapixels
- MTBF Availability Calculator: Uptime and Nines
- Network Throughput Calculator: Effective Data Transfer Rate
- Nyquist Frequency Calculator
- Octal to Decimal Converter: Base 8 to Base 10
- Op-Amp Bandwidth Calculator 2026: Gain-Bandwidth Product
- Packet Loss Rate Calculator
- Page Table Entries Calculator
- Parity Bit Calculator
- Password Entropy Calculator: Measure Password Strength in Bits
- PC Power Supply Wattage Calculator: PSU Size
- Permutation Count (nPr) Calculator
- Pixel Density (PPI) Calculator
- Quantisation Step Size Calculator
- Queries Per Second Calculator: Average QPS Load
- RAID 5 Capacity Calculator
- RAID Storage Calculator: Usable Capacity and Fault Tolerance
- RAM Bandwidth Calculator: Theoretical Memory Bandwidth
- Reading Time Calculator: Estimate Time to Read Any Text
- Recommended Video Bitrate Calculator 2026: Bitrate from Resolution
- Recursion Depth (factorial) Calculator
- Redundancy Calculator: N+1, N+M and K-of-N Systems
- Required Bandwidth Calculator 2026: Size a Network Link
- RGB to Hex Calculator
- RGB to HSL Converter: Hue, Saturation, Lightness
- RGB to HSL Lightness Calculator
- Run-length Encoding Length Calculator
- Sampling Rate (minimum) Calculator
- Screen Dimensions from Diagonal Calculator
- Screen PPI Calculator: Pixels Per Inch Density
- Screen Size Calculator: Width, Height and Area
- Server Capacity Calculator: Throughput and Servers
- Server Response Time Calculator: Latency Total
- SLA Compliance Calculator - Uptime and Response Time SLA
- Slew Rate Bandwidth Calculator: Full-Power Bandwidth
- Social Media Engagement Rate Calculator
- Solar Battery Storage Size Calculator: Right-Size Your Battery Bank
- Storage from Bitrate Calculator 2026: Video File Size from Mbps
- Storage Unit Size Calculator: Find the Right Unit for Your Belongings
- Streaming Bandwidth Calculator: Data Per Hour
- Subnet Mask Calculator
- Subnet Mask Converter: Prefix, Mask, Wildcard
- Supernet Block Size Calculator
- TCP Throughput (window) Calculator
- Throughput from Latency Calculator 2026: TCP Window over RTT
- Transfer Time Calculator
- Two's Complement Range Calculator
- Unicode Code Point to UTF-8 Bytes Calculator
- Uptime SLA Downtime Calculator: Allowed Minutes
- Uptime SLA Downtime Calculator: Allowed Outage per Period
- USB Power Delivery Calculator: Watts From V and A
- User Bandwidth Allocation Calculator: Per-User Internet Speed
- Video Conference Bandwidth Calculator: Zoom, Teams, and Meet
- Video File Size Calculator: Storage Estimator for HD and 4K Video
- Video Streaming Bandwidth Calculator: Estimate Stream Bitrate Needs
- Virtual Address Page Number Calculator
- VLSM Hosts per Subnet Calculator
- VPN Bandwidth Calculator: Throughput & Data Use
- Website Load Time Calculator: Page Speed Estimate
- Wildcard Mask Calculator