Specialized and less common unit conversion calculators. Browse our free other tools below — all calculators are instant, accurate, and require no sign-up.
Capacitance Conversion Calculator — Convert capacitance between picofarads, nanofarads, microfarads, millifarads, and farads. Common capacitor presets, charge estimation, and reference table for electronic components.
CGS to SI Unit Converter — Convert between CGS and SI units for force, energy, pressure, viscosity, magnetic fields, and more. Covers dyne, erg, gauss, poise, stokes, barye, and all major CGS quantities.
CM to Height Conversion Calculator — Convert height between centimeters and feet & inches. Visual height bar, percentile estimation, preset heights, and a full reference table from 4'10" to 6'8".
CM to Feet and Inches Converter — Convert centimeters to feet and inches or feet and inches to centimeters. Includes decimal feet, meters, yards, preset values, and a real-world reference length table.
Centimeters to Inches Converter — Convert centimeters to inches and inches to centimeters instantly. Visual comparison bar, common object reference table, plus millimeters, feet, and meters outputs.
Centimeters to Kilometers Converter — Convert between centimeters and kilometers with metric ladder, miles output, log-scale visualization, and real-world distance reference table. Bidirectional and instant.
Centimeters to Meters Converter — Convert centimeters to meters and meters to centimeters. Includes metric unit ladder, mm/km/inches/feet outputs, size visualization, presets, and real-world reference table.
Centimeters to Millimeters Converter — Convert between centimeters and millimeters instantly. Also shows meters, inches, micrometers, and typographic points. Ruler visualization, quick table, and common object size reference.
Unit Conversion Calculator — All-in-one unit converter for length, weight, volume, area, speed, and temperature. Bidirectional with swap, conversion factor, scientific notation, and full unit table.
GPS Coordinates Converter — Convert between decimal degrees and DMS (degrees, minutes, seconds) coordinate formats. Includes radians, decimal minutes, city presets, and a landmark reference table.
Typing Speed Converter (CPS / WPM / KPH) — Convert between characters per second, words per minute, keystrokes per hour, and characters per minute. Typing speed tier classification, presets, and reference table.
Dimensional Analysis Calculator — Build step-by-step conversion factor chains for dimensional analysis. Editable multi-step conversion with running totals, presets for mph→m/s, atm→Pa, kg→lb, and common factor reference.
Distance Converter — Convert between 11 distance units: mm, cm, m, km, inches, feet, yards, miles, nautical miles, furlongs, and leagues. Presets, visual bars, and quick reference table.
Decimeter Conversion Calculator — Convert decimeters to and from millimeters, centimeters, meters, kilometers, inches, feet, and yards. Metric ladder, presets, all-unit table, and object size reference.
Drops to mL Converter — Convert between drops and milliliters with selectable dropper types (standard, medical, essential oil, fine). Teaspoon fill bar, common dosage table, and bidirectional conversion.
Feet to Meters Converter — Convert feet to meters and meters to feet instantly. Also shows inches, centimeters, yards, and kilometers. Quick table, real-world reference heights, and visual bar.
Grams to Pounds Converter — Convert grams to pounds and pounds to grams. Also shows ounces, kilograms, stone, and pounds-ounces mixed notation. Quick table and everyday weight reference.
Grams to Ounces Converter — Convert grams to ounces and ounces to grams. Also shows pounds, kilograms, troy ounces, and lb+oz mixed notation. Quick table and everyday weight reference.
Gallons to Kilograms Converter — Convert US gallons to kilograms for water, milk, oil, honey, gasoline, and custom densities. Bidirectional with pounds, liters, fluid ounces, and liquid weight comparison table.
Grams to Milliliters Converter — Convert grams to mL and mL to grams for water, flour, sugar, oil, honey, and custom substances. Shows teaspoons, tablespoons, cups, and fluid ounces with density table.
Grams to Teaspoons Converter — Convert grams to teaspoons for sugar, salt, flour, baking powder, cinnamon, cocoa, yeast, and custom ingredients. Shows tablespoons, cups, and ingredient comparison table.
Hardness Conversion Calculator — Convert between Vickers (HV), Brinell (HB), Rockwell C (HRC), Rockwell B (HRB), and Mohs hardness scales. Material presets, log-scale bar, and hardness reference table.
Inches to Centimeters Converter — Convert inches to centimeters and cm to inches. Also shows mm, meters, feet, and feet+inches. Quick table, visual meter bar, and object size reference.
Kilograms to Pounds Converter — Convert kilograms to pounds and pounds to kilograms. Shows ounces, stone, grams, lb+oz and st+lb mixed notation. Quick table and everyday weight reference.
KG to mL Converter — Convert kilograms to milliliters and back using substance density. Includes common densities for water, milk, oil, honey, and more.
Liters to Gallons Converter — Convert liters to US gallons, UK gallons, quarts, pints, cups, and fluid ounces. Includes price calculator and volume reference table.
Land Area Converter — Convert land area between acres, hectares, square feet, square meters, square miles, and regional units. Includes land valuation and size comparisons.
Lat/Long to UTM Converter — Convert latitude and longitude coordinates to UTM (Universal Transverse Mercator) including easting, northing, zone, grid convergence, and scale factor.
Pounds to Grams Converter — Convert pounds to grams and vice versa. Shows results in kg, oz, mg, stones, and troy ounces with common weight references and visual scale.
Pounds to Kilograms Converter — Convert pounds to kilograms with stones, ounces, grams output. Includes optional BMI calculator, body weight reference table, and visual weight bar.
Leet Speak (1337) Converter — Convert text to and from leet speak with basic, advanced, and extreme styles. Full character mapping table, substitution statistics, and live preview.
Case Converter (Lowercase ↔ Uppercase) — Convert text between uppercase, lowercase, title case, sentence case, toggle case, and programming naming conventions like camelCase and snake_case.
Meters to Feet Converter — Convert meters to feet and inches with fractional display. Shows yards, cm, mm, and km with length reference table and visual scale bar.
MB to GB Converter — Convert between bytes, KB, MB, GB, TB, and PB using binary or decimal standards. Includes binary vs decimal comparison and storage content reference.
Mbps Bandwidth Converter — Convert between Mbps, Gbps, Kbps, MB/s, GB/s, and KB/s. Includes download time calculator and connection speed reference table.
Mbps to Gbps Converter — Convert between Mbps and Gbps with Tbps, Kbps, MB/s, and GB/s outputs. Includes transfer time estimator and network standard comparison table.
Micrograms to Milligrams Converter — Convert micrograms (mcg/μg) to milligrams (mg) and vice versa. Includes vitamin/mineral dosage reference, IU conversions, and medication safety warnings.
Micrograms to Milliliters Converter — Convert micrograms (mcg) to milliliters (mL) using concentration or density. Includes dosage volume table and medical safety guidance.
Milligrams to Cubic Centimeters Converter — Convert milligrams (mg) to cubic centimeters (cc/mL) using substance density. Includes 8 density presets, volume comparison table, and medical volume units.
Milligrams to Pounds Converter — Convert milligrams (mg) to pounds (lbs) with ounces, grams, kilograms, stones, and grains. Includes weight reference table and visual scale bar.
Milligrams to Milliliters Converter — Convert milligrams (mg) to milliliters (mL) using density or concentration. Supports cooking, pharmacy, and lab applications with 8 substance presets.
Milliliters to Tablespoons Converter — Convert mL to tablespoons with US, metric, UK, and Australian standards. Includes cooking volume reference and multi-standard comparison table.
Milliliters to Cubic Centimeters Converter — Convert mL to cc (they are equal) with additional conversions to liters, fl oz, cups, drops. Includes volume reference table and medical syringe guide.
Milliliters to Kilograms Converter — Convert milliliters (mL) to kilograms (kg) using substance density. Includes 8 density presets, mass comparison table, and imperial unit outputs.
Milliliters to Pounds Converter — Convert milliliters (mL) to pounds (lbs) using substance density. Includes 8 density presets, weight comparison table, and fluid oz vs weight oz clarification.
Milliliters to Fluid Ounces Converter — Convert mL to fluid ounces (US and UK). Includes cups, pints, gallons, US vs Imperial comparison, and common container size reference table.
Milliliters to Microliters Converter — Convert mL to μL (microliters) with nanoliter and picoliter scales. Includes volume scale reference and laboratory pipette/container guide.
Milliliters to Teaspoons Converter — Convert mL to teaspoons (metric and US) with medicine dosage reference and cooking ingredient weight table. Includes tbsp, fl oz, cups, and drops.
Millimeters to Feet Converter — Convert millimeters to feet and inches instantly. Includes batch conversion, fraction display, reference table, and multi-unit output for mm ↔ ft.
Millimeters to Kilometers Converter — Convert millimeters to kilometers and back with scientific notation support, batch mode, multi-unit output, and a comprehensive reference table.
Millimeters to Meters Converter — Convert millimeters to meters with precision control, visual scale bar, batch processing, reference table, and multi-unit output including imperial.
Meters per Second to km/h Converter — Convert m/s to km/h, mph, knots, ft/s, and Mach. Includes speed context visualization, reference table, batch mode, and 6 input units.
Nanometer Converter — Convert nanometers to micrometers, millimeters, ångströms, inches, and more. Visible light spectrum indicator, scale reference table, and batch mode.
Newton-Meters to Foot-Pounds Converter — Convert torque from N·m to ft·lb, in·lb, kgf·cm, and more. Includes torque spec reference table, visual torque class indicator, and batch mode.
Newton-Meters to Inch-Pounds Converter — Convert N·m to inch-pounds (in·lbs) for low-torque applications. Includes ft·lb, kgf·cm, oz·in output, torque spec reference, and batch mode.
Nautical Miles Converter — Convert nautical miles to kilometers, statute miles, meters, feet, cables, and fathoms. Includes maritime distance context table and batch mode.
Number to Billion / Million / Crore Converter — Convert numbers between billions, millions, trillions, lakhs, and crores. Shows number in words, scientific notation, and Western vs Indian numbering.
Ounces to Milliliters Converter — Convert fluid ounces to milliliters and back. Shows cups, liters, tablespoons, pints, gallons. Common volume reference table and batch mode.
Ounces to Cubic Centimeters (cc) Converter — Convert fluid ounces to cc (cubic centimeters / mL) for medical and cooking use. Includes liters, cups, tablespoons, reference table, and batch mode.
Paper Quantity Converter — Convert between sheets, quires, reams, bundles, bales, cartons, and pallets. Calculates paper weight and stack height by paper type and GSM.
PPM to mg/L Converter — Convert between ppm, mg/L, ppb, percent, µg/L, g/L, and molarity. Includes solution density correction and EPA/WHO water quality reference.
Pressure Unit Converter — Convert between 13 pressure units: Pa, kPa, MPa, bar, atm, PSI, mmHg, inHg, cmH₂O, kg/cm², and more with batch mode and context table.
PX to EM / REM Converter — Convert between CSS units: px, em, rem, pt, %, vw, and ch. Includes type scale ratios, quick reference table, and live size preview.
Quantity Converter — Convert between 38+ units across 5 categories: length, mass, volume, area, and speed. SI and imperial units with full cross-reference tables.
Radiation Dose Converter — Convert between Sv, mSv, µSv, rem, mrem, Gy, mGy, rad, and Röntgen. Shows risk level, dose equivalences, and weighting factors.
Roman Numeral Converter — Convert between Roman numerals and Arabic numbers (1–3999). Visual breakdown, symbol reference, subtractive rules, and range table.
Scale Conversion Calculator — Convert between actual and scale model/map dimensions. Supports any ratio, 8 length units, area/volume scaling, and 15 common scale references.
Tablespoon to Milliliter Converter — Convert tablespoons to mL and back. Supports US, UK/metric, and Australian tablespoons with quick reference table and regional differences.
Time Unit Converter — Convert between 12 time units from nanoseconds to centuries. Human-readable breakdown, context references, and full cross-reference table.
Time Zone Converter — Convert times between 33 world time zones. World clock, business hours overlap, 24/12-hour format, and quick pairs for major city routes.
Teaspoon to Milliliter Converter — Convert teaspoons to mL and back. Supports US, metric, and UK teaspoons with quick reference, medicine dosing table, and visual volume indicator.
Unix Timestamp Converter — Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds, ISO 8601, RFC 2822, relative time, and code snippets.
Uppercase to Lowercase Converter — Convert text between uppercase, lowercase, title case, camelCase, snake_case, kebab-case, and 12 total case styles with text statistics and composition visual.
Weird & Unusual Unit Converter — Convert between 21 unusual length units: smoots, furlongs, football fields, blue whales, bananas, beard-seconds, cubits, parsecs, and more. Fun facts included.