Online calculators

Online calculator catalog
Life 125
	Calendar Gregorian to fixed date, Week days calculator, 365 days calendar date to Gregorian date, Coptic calendar, Gregorian date to Hindu mean lunisolar calendar, ... +14
	Date and Time Russian non-working days, Mayan calendar, 2012, the end of the world., Ancient Egyptian Calendar, Russian Working Days Calculator, Date plus days, ... +60
	Health The number of packs steroid you need for cycle, The basal metabolic rate, Pregnancy Due Date Predictor, Nagler's Ideal Weight Calculator, Coronavirus disease epidemic in different countries, ... +13
Professional 325
	Computers List Join, Keyboard layout and password, Information gain calculator, List Filter Calculator, Numeral System Converter, ... +60
	Engineering Barlow formula, Humindex, Equilibrium moisture content , Liquid level in the tilted cylinder, Pipe Wall Thickness, ... +34
	Finance Tax deductions from personal income tax, Cost per unit of volume, Effective interest rate, Percentage, Compound interest, ... +30
	Image processing Image Flip & Rotate, Jpeg image meta-data, Digital images parameters comparison, Median filter, Color image to black and white image, ... +6
	Navigation Compass point between two locations, Prospect distance from the ground and line of sight distance between two observers, Tidal gate calculator (Rule of twelfths), Points of the compass, Flag Semaphore Translator, ... +15
	Statistics Seasonal fluctuations. Seasonal indices. Method of simple averages, Double exponential smoothing, Poisson Distribution. Probability density function, cumulative distribution function, mean and variance, Exponential Moving Average, Z-score from P-value, ... +32
	Telecommunications PBX channel number calculation, Morse-ify and Modify., VOIP call bandwidth, Number of agents in a call center, ... +1
	Units converters Digital image size in pixels and photo print size, MPG to L/100 km Conversion Calculator, Number of flagstones to units of area and vice versa, Exotic length units, Expressing length through different units, ... +19
	Сryptography Tips and tricks #1: How to set output value, A2Z52 encoder/decoder, Alphabet, Text file decoder, Tips and tricks #10: Files, long calculation mode, ... +83
Study 420
	Astronomy Dates of the beginning and end of polar night and polar day at a given latitude, Shadow length, Declination and maximum altitude of the Sun above the horizon on a given date,
	Chemistry Molar Mass Calculator, Concentration of analyte with uncertainty analysis for replicate titrations, Peptide calculator, Dilution of solutions, Molar mass of the substance, ... +20
	Math Modular arithmetic, Volume of liquid in a tilted tank with hemispherical heads, Bin packing problem 2, Polynomial math, Parallel and perpendicular lines on a plane, ... +310
	Physics Thermodynamics – calculator for solving mixing problems, Projectile Motion Calculator, Simple beam support reaction, Gravity Pressure Calculator, Vertical Collision Kinematics Calculator, ... +61

991 calculators in total.

Latest calculators

2025-06-26 06:32:36 Partial Skein Yarn Yardage Estimator
2025-06-13 11:24:55 Moment of Inertia
2025-06-11 09:46:02 Gaming Raid Time Converter: Simplify Global Event Scheduling
2025-05-31 11:41:57 Dart Score Calculator: Master 501, 301 & 301 Double-In Games
2025-05-28 22:47:22 Bill Splitter - Simplify Group Expenses with Ease

Latest requests

2025-03-29 23:14:46 Creative
2024-12-12 23:39:16 Soul Calendar dating calculator
2024-10-12 17:27:18 Ayanamsha
2024-10-10 19:46:38 Week number generator from any given date in the past and into the future
2024-10-10 19:45:49 Week number generator from any given date in the past and into the future

Last comments

2025-07-20 06:09:30 Sofia Vasilievna (4)
2025-07-08 23:29:35 Date plus days (45)
2025-06-25 13:39:46 A1Z26 cipher (115)
2025-06-16 02:22:13 How many months are there between two dates? (14)
2025-06-10 11:19:28 Numbered list maker (4)

Online calculator

A web-based tool or program accessible via internet browsers, designed to perform mathematical calculations (e.g., arithmetic, algebraic, or scientific computations). Users interact with it through a web page interface without requiring software installation.

planetcalc.com, 2008.

Can't find calculators you've been looking for? Please suggest an idea for a new online calculator. If you leave a description of what you want to calculate, a member of our team will respond to your request and produce a calculator that meets your requirements.

PLANETCALC Online calculators

Online calculator catalog

991 calculators in total.

Latest calculators

Latest requests

Last comments

Online calculator