Electrical & Electronics Suite
Calculate Ohm's law, convert capacitance & inductance, size wires with AWG, design voltage dividers, and perform RF power (dBm) scaling.
Explore Additional Utilities
Bleed & Margin Helper
Convert print bleed and margins, and calculate print-ready canvas sizes for offset printing.
Thermal conductivity — W/m·K ↔ BTU·in/hr·ft²·°F
Translate thermal conductivity values between W/m·K, BTU·in/hr·ft²·°F, and other units.
Water cement ratio ↔ compressive strength
Estimate 28-day concrete compressive strength from the water-cement (W/C) ratio using Abrams' Law, or solve for desired strengths.
Buoyancy — weight needed ↔ wetsuit thickness + water type
Determine required lead weight adjustments based on wetsuit thickness, water density (salt vs. fresh), and diver body metrics.
Lux & Foot-Candles Photometry
Calculate architectural light levels, illuminance indexes, and foot-candle units.
Magnetic Declination
Estimate compass alignment values and offset angles between magnetic north and true north.
Weight Converter
Convert between kilogram, gram, pound, ounce, stone, and other mass units.
Weld throat thickness ↔ leg length — fillet weld geometry
Convert between throat thickness and leg length for fillet welds. Estimate joint volume, weld weight, and shear load capacity.
Flesch-Kincaid Reading Level
Calculate readability scores and Flesch-Kincaid school grade levels for any input text in real-time.
Void Fill Material Volume
Calculate empty space volume inside a shipping box after placing items to determine packaging material needed.
URL Encoder & Decoder
Safely encode illegal URL string sequences or decode clean string paths.
Base Number Converter
Convert raw numbers seamlessly between Binary, Octal, Decimal, and Hexadecimal formats with active bit layouts.
Julian ↔ Gregorian Calendar
Convert between Julian Dates (JD, MJD) and standard Gregorian calendar dates with day of the year and century metrics.
Nail size — penny (d) ↔ mm ↔ inches length
Convert traditional penny (d) nail sizes to absolute physical lengths in millimeters and inches, including standard shank gauge and nail types.
Hyperfocal Distance Calculator
Calculate hyperfocal distance, near sharp limit, and depth of field range starting point for any focal length, aperture, and sensor format.
Dovetail angle — ratio ↔ degrees for hardwood vs softwood
Convert dovetail joint slope ratios (e.g. 1:6, 1:8) to slope angles in degrees and verify hardwood/softwood suitability.
Hash output size — MD5 ↔ SHA1 ↔ SHA256 ↔ SHA512 bits
Analyze hash function characteristics (MD5, SHA-1, SHA-2, SHA-3), including bit size, hex length, collision vulnerability, and use cases.
MAC address formats — colon ↔ hyphen ↔ Cisco notation
Convert physical MAC addresses between IEEE colon, hyphen, Cisco dot format, and raw hex strings.
Entropy bits ↔ password strength — character set + length
Calculate Shannon entropy bits based on character pool variety and length. Estimate brute-force resistance across various threat models.
Paper weight — gsm ↔ lb bond ↔ lb cover ↔ lb text
Convert paper weights between Grams per Square Meter (GSM) and standard US basis weights (Bond, Text/Book, Cover).