Auto
Fuel Cost Calculator
Calculate trip cost for one or two cars.
Online calculators for accurate everyday calculations
90+ calculators: auto, finance, construction, education, sport, kitchen, and more — free, no sign-up.
Auto
Auto
Car Import Fees Calculator
Duty, excise and VAT for cars from Europe or the USA.
Auto
TCO Calculator (EV vs ICE)
Compare total ownership cost for 3–10 years.
Auto
EV Charging Cost Calculator
Home outlet or station — with charging losses.
Auto
Open
EV Range Calculator
Estimated range accounting for city, highway, and winter conditions.
Auto
Tire & Wheel Size Calculator
Diameter, clearance and speedometer error.
Auto
Total Car Cost from Europe
Price, delivery, customs, certification and registration.
Auto
Braking Distance Calculator
Driver reaction + braking distance + full stop.
Auto
OSCPV Insurance Calculator
Price range + comparison of policy conditions.
Auto
Open
Car Lease Calculator
Monthly lease payment accounting for residual value.
Auto
Open
Car Loan Amortization
Full monthly payment schedule: interest, principal, balance.
Auto
Open
Car Depreciation Calculator
Estimated car value after 1-10 years with a depreciation chart.
Finance
Finance
Open
NBU Currency Converter
Convert currencies using the official NBU exchange rates. USD, EUR, PLN and more.
Finance
Open
Loan Calculator
Monthly payment, overpayment, total amount and payment schedule.
Finance
Open
Mortgage Calculator
Payment, overpayment and schedule. Down payment: ₴ or %.
Finance
Open
Deposit Calculator
Calculate deposit income, interest, taxes, capitalization, monthly top-ups and a detailed schedule.
Finance
Open
Salary Calculator (Net Pay)
Calculate your net salary after taxes and deductions. Enter gross pay and options — get “on-hand” pay with a clear breakdown.
Finance
Open
Compound Interest
Initial amount, monthly contributions, rate, years, and compounding frequency. Final amount, contributed vs earned (%), growth chart, and yearly table.
Finance
Open
Investment ROI Calculator
Investment amount, expected return, years, and monthly contributions. Results: ROI %, net profit, final amount, and a growth chart.
Finance
Open
Retirement Calculator
Estimate retirement savings with current balance, monthly contributions, retirement age, and expected return. Includes growth chart and breakdown.
Finance
Open
Inflation Calculator
See how inflation reduces purchasing power: real value in today’s money, required nominal amount, plus a chart and yearly table.
Construction
Construction
Open
Construction Cost Calculator
Area, cost per m², stages, contingency and taxes. Get total cost, effective cost per m², chart and table.
Construction
Open
Cement Concrete Calculator
Concrete volume + materials: cement, sand, gravel and water. Chart, table and CSV.
Construction
Open
Brick Calculator
Estimate bricks (pcs) and mortar (m³) by wall size/area, thickness, brick size and joint. Includes chart and export.
Construction
Open
Plastering Calculator
Bags or cement+sand. Water, chart and materials table.
Construction
Open
Flooring Calculator
Laminate/vinyl (packs), tile (size + pcs/pack), carpet (roll width → linear meters).
Construction
Open
Earthworks Volume Calculator
Calculate excavation volume for trench or area. Includes overdig, bulking, tonnage and truck trips.
Construction
Open
Steel Weight Calculator
Calculate steel/metal weight from geometry: bars, pipes, profiles, strips and sheets. Includes chart, table, copy and CSV (Excel).
Construction
Open
Paint Calculator
How much paint you need for walls and ceiling with multiple coats.
Construction
Open
Tile Calculator
How many tiles you need for flooring or walls with a waste allowance.
Construction
Open
Insulation Calculator
Recommended insulation thickness and material quantity.
Construction
Open
Wallpaper Calculator
How many wallpaper rolls you need based on room perimeter.
Construction
Open
Drywall Calculator
Number of drywall sheets for walls or ceiling with waste allowance.
Construction
Open
Rebar Calculator
Rebar quantity and weight for a slab, foundation, or screed.
Construction
Open
Roofing Calculator
Roof area and material quantity based on roof pitch.
Education
Education
Open
Fraction Calculator
Online calculator for adding, subtracting, multiplying and dividing fractions. Supports mixed numbers, improper fractions, automatic simplification and decimal conversion.
Education
Open
Percentage Calculator
Find X% of a number, percent change, and what percent one number is of another.
Education
Open
Quadratic Equation Calculator
Solve equations of the form ax² + bx + c = 0, find the discriminant, roots, and steps.
Education
Open
Linear Equation Solver
Solve equations of the form ax + b = 0, find x, and handle special cases.
Education
Open
System of Equations Calculator
Solve a 2x2 system of linear equations, calculate determinants, and find x and y.
Education
Open
Scientific Calculator
Arithmetic, trigonometry, logarithms, powers, roots, π, e, and calculation history.
Education
Open
Circle Area Calculator
Find circle area using radius, diameter, or circumference with step-by-step explanation.
Education
Open
Triangle Area Calculator
Find triangle area using base and height, three sides, or two sides and an angle.
Education
Open
Pythagorean Theorem Calculator
Find the hypotenuse or a leg in a right triangle using the formula a² + b² = c².
Education
Open
Volume Calculator
Calculate the volume of a cube, sphere, and cylinder with formulas, examples, and visualization.
Education
Open
Matrix Calculator
Addition, subtraction, multiplication, transpose, and determinant.
Education
Open
GPA Calculator
Calculate your Grade Point Average on the 4.0 scale.
Education
Open
Statistics Calculator
Mean, median, mode, standard deviation, and variance.
Sport
Sport
Open
One-Rep Max Calculator
Calculate your 1RM using the Epley and Brzycki formulas. Includes a percentage table for training.
Sport
Open
Calorie Calculator (BMR/TDEE)
Basal metabolic rate and daily calorie needs using the Mifflin-St Jeor formula.
Sport
Open
Heart Rate Zones Calculator
5 training intensity zones using the Karvonen formula or 220 minus age.
Sport
Open
BMI Calculator
Body Mass Index from height and weight with WHO-scale categories.
Sport
Open
Macro Calculator
Daily protein, fat, and carb targets based on calories and goal.
Sport
Open
Running Pace Calculator
Calculate pace, finish time, or distance with predictions for 5K, 10K, marathon.
Sport
Open
Body Fat Percentage Calculator
US Navy method using neck, waist, and hip measurements with body composition categories.
Sport
Open
Water Intake Calculator
Daily water needs based on weight, activity, and climate with a daily schedule.
Sport
Open
DOTS Score Calculator
Compare relative powerlifting strength between athletes of different body weights.
Date/Time
Date/Time
Open
Age Calculator
Exact age in years, months, days. Days until your next birthday.
Date/Time
Open
Date Difference Calculator
Days, weeks, months, and business days between two dates.
Date/Time
Open
Add/Subtract Days Calculator
Find out what date it will be N days, weeks, months, or years from now.
Date/Time
Open
Countdown Timer
Live counter of days, hours, minutes, and seconds until any event.
Date/Time
Open
Time Zone Converter
Find out the time in another city for calls and travel planning.
Date/Time
Open
Day of the Week Calculator
Find out what day of the week any date falls on — past or future.
Date/Time
Open
Zodiac Sign Calculator
Western zodiac sign and Chinese zodiac animal from your birth date.
Date/Time
Open
Unix Timestamp Converter
Convert epoch time to a date and back for developers.
Date/Time
Open
Moon Phase Calculator
Find the moon phase and illumination percentage for any date.
Kitchen
Kitchen
Open
Cooking Measurement Converter
Cups, spoons, grams, and milliliters accounting for ingredient density.
Kitchen
Open
Recipe Scaler
Automatically recalculates ingredients for any number of servings.
Kitchen
Open
Oven Temperature Converter
Convert between Celsius, Fahrenheit, and Gas Mark.
Kitchen
Open
Ingredient Substitution
What to use instead of eggs, butter, milk, sugar, and more, with ratios.
Kitchen
Open
Safe Meat Temperature Guide
Doneness chart for meat, poultry, and fish with rest times.
Kitchen
Open
Pan Size Converter
Scaling factor for a recipe when substituting a baking pan.
Pregnancy
Pregnancy
Open
Due Date Calculator
Estimated due date, current week, and trimester using three methods.
Pregnancy
Open
Ovulation Calculator
Ovulation day and fertile window for pregnancy planning.
Pregnancy
Open
Pregnancy Week Calculator
Exact week, trimester, and fetal size compared to fruits.
Pregnancy
Open
Weight Gain Calculator
Recommended weight gain range based on pre-pregnancy BMI.
Misc
Misc
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Unit Converter
Length, weight, volume, temperature, area, speed all in one place.
Misc
Open
Tip Calculator
Calculate tips and split the bill among multiple people.
Misc
Open
Word Counter
Live count of words, characters, sentences, and read time.
Misc
Open
Password Generator
Create a strong random password with a strength indicator.
Misc
Open
Random Number Generator
Random numbers within a range for giveaways, games, and sampling.
Misc
Open
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and back.
Misc
Open
QR Code Generator
Create a QR code for a link or text with a download option.
Misc
Open
Wedding Budget Calculator
Plan wedding expenses with a category breakdown.
Misc
Open
Love Calculator 💕
A fun compatibility percentage based on names — for entertainment.
CalcCore — 90+ free online calculators
CalcCore is a comprehensive collection of calculators for everyday calculations: auto (fuel, leasing, depreciation), finance (loans, deposits, inflation), construction (materials, area, cost), education (algebra, statistics, GPA), sport and health (calories, BMI, running pace), date and time, kitchen, pregnancy, and many other practical tools.
All calculators are free, require no registration, and are available in English and Ukrainian. Each tool includes detailed explanations, formulas, and answers to frequently asked questions — so you get more than just a number, you understand how it's calculated.
Use the search in the top menu to instantly find the calculator you need.