102 Calculators
Calculators
Search or browse the full calculator directory.
01
Scientific Calculator
Evaluate expressions with powers, roots, logs, trig, and pi.
02
Mortgage Calculator
Estimate principal and interest payments from price, down payment, rate, and term.
03
Loan Calculator
Estimate repayment for fixed personal or auto loans.
04
BMI Calculator
Check body mass index with either imperial or metric units.
05
Percentage Calculator
Handle percentage of, what percent, and percent change questions on one page.
06
Age Calculator
Calculate age in years and see the exact years, months, and days between two dates.
07
Tip Calculator
Calculate gratuity, final bill total, and how much each person should pay.
08
GPA Calculator
Estimate weighted GPA from comma-separated course grades and credit hours.
09
Unit Converter
Convert length, weight, temperature, and volume values with one flexible page.
10
Compound Interest Calculator
Project savings growth with contributions, returns, and compounding frequency.
11
Calorie Calculator
Estimate daily calorie targets using age, sex, body size, activity, and goal adjustment.
12
TDEE Calculator
Estimate total daily energy expenditure from body size, age, sex, and activity.
13
BMR Calculator
Estimate basal metabolic rate from age, sex, height, and weight.
14
Body Fat Calculator
Estimate body fat percentage with the U.S. Navy circumference method.
15
Ideal Weight Calculator
Estimate an ideal weight range reference from sex and height.
16
Macro Calculator
Split a calorie target into daily protein, carbohydrate, and fat grams.
17
Water Intake Calculator
Estimate a daily water target from body weight and activity time.
18
Protein Calculator
Estimate daily protein needs from body weight and a chosen intake multiplier.
19
Pace Calculator
Find pace and speed from distance and finish time for running or walking.
20
One Rep Max Calculator
Estimate one-rep max from the amount lifted and the completed rep count.
21
Target Heart Rate Calculator
Estimate a target heart rate range from age and training intensity.
22
Due Date Calculator
Estimate a pregnancy due date from the first day of the last menstrual period.
23
Ovulation Calculator
Estimate ovulation timing and the fertile window from period date and cycle length.
24
Pregnancy Weight Gain Calculator
Estimate a recommended pregnancy weight gain range from pre-pregnancy BMI.
25
Date Difference Calculator
Measure the number of days and the exact calendar difference between two dates.
26
Time Duration Calculator
Calculate the elapsed time between a start time and an end time.
27
Working Days Calculator
Count weekdays between two dates for business or project planning.
28
Time Card Calculator
Estimate daily and weekly paid time from start, end, break, and work days.
29
Countdown Calculator
Count down the number of days remaining until a target date.
30
Sales Tax Calculator
Calculate tax amount and total purchase price from a base price and sales tax rate.
31
Discount Calculator
Find the final price and the amount saved from a discount percentage.
32
Salary to Hourly Calculator
Convert annual salary into an hourly pay rate based on hours worked and weeks per year.
33
Hourly to Salary Calculator
Convert hourly pay into annual salary using hours per week and weeks worked each year.
34
Pay Raise Calculator
See the new salary and raise amount from a percentage increase.
35
Budget Calculator
Split monthly income into needs, wants, and savings using the 50/30/20 framework.
36
Net Worth Calculator
Calculate net worth by subtracting liabilities from total assets.
37
ROI Calculator
Measure return on investment from starting cost and ending value.
38
Break Even Calculator
Find how many units you need to sell to cover fixed and variable costs.
39
Profit Margin Calculator
Calculate profit margin from revenue and cost.
40
Markup Calculator
Calculate selling price and gross margin from a markup percentage.
41
Commission Calculator
Find commission earnings from a sale amount and commission rate.
42
Emergency Fund Calculator
Estimate an emergency fund target from monthly expenses and desired months of coverage.
43
Savings Goal Calculator
Estimate the monthly contribution needed to reach a savings goal on time.
44
Retirement Calculator
Project retirement savings from your current age, target retirement age, savings, and contributions.
45
Debt Payoff Calculator
Estimate how long it will take to pay off a balance with a fixed monthly payment.
46
Credit Card Payoff Calculator
Estimate payoff time and interest for a credit card balance and fixed monthly payment.
47
Simple Interest Calculator
Calculate simple interest and ending balance from principal, rate, and time.
48
Auto Loan Calculator
Estimate monthly payments for a car purchase loan.
49
Personal Loan Calculator
Estimate monthly payments for a fixed-rate personal loan.
50
Student Loan Calculator
Estimate monthly payments for a student loan balance.
51
Amortization Calculator
Estimate monthly payment totals for an amortized loan.
52
Refinance Calculator
Estimate a new monthly payment from a refinance balance, rate, and new term.
53
Down Payment Calculator
Calculate a down payment amount and remaining loan balance from home price and down payment percent.
54
Mortgage Affordability Calculator
Estimate a maximum home price from monthly income, debts, DTI, rate, term, and down payment.
55
Debt to Income Calculator
Calculate debt-to-income ratio from monthly debt payments and gross monthly income.
56
Loan to Value Calculator
Measure the loan-to-value ratio from the loan amount and the asset value.
57
Future Value Calculator
Project future value from a present amount, return rate, time, and compounding frequency.
58
Present Value Calculator
Calculate the present value required to reach a future amount at a given rate and time.
59
Annuity Payout Calculator
Estimate a monthly payout from a lump sum, annual rate, and payout term.
60
Inflation Calculator
Estimate how a current price changes over time with inflation.
61
CAGR Calculator
Calculate compound annual growth rate from a starting value, ending value, and time period.
62
Average Calculator
Calculate the arithmetic mean from a comma-separated list of numbers.
63
Median Calculator
Find the median of a comma-separated list of numbers.
64
Standard Deviation Calculator
Calculate the population standard deviation of a list of values.
65
Fraction Calculator
Add, subtract, multiply, or divide fractions and simplify the result.
66
Fraction to Decimal Calculator
Convert a fraction into a decimal value.
67
Decimal to Fraction Calculator
Convert a decimal into a simplified fraction.
68
Ratio Calculator
Simplify a two-value ratio into lowest terms.
69
Percent Error Calculator
Measure percent error between an expected value and an observed value.
70
Slope Calculator
Find the slope of a line from two coordinate points.
71
Distance Formula Calculator
Measure the distance between two points on a coordinate plane.
72
Quadratic Formula Calculator
Solve quadratic equations from coefficients a, b, and c.
73
Pythagorean Theorem Calculator
Calculate the hypotenuse of a right triangle from the two shorter sides.
74
Area Calculator
Calculate area for rectangles, circles, and triangles on one page.
75
Perimeter Calculator
Calculate perimeter for rectangles, circles, and triangles.
76
Volume Calculator
Calculate volume for boxes, cylinders, and spheres.
77
Surface Area Calculator
Calculate surface area for boxes, cylinders, and spheres.
78
Circle Calculator
Calculate area, circumference, and diameter from a circle radius.
79
Final Grade Calculator
Estimate a final course grade from your current grade and final exam score.
80
Grade Needed Calculator
Calculate the exam grade needed to reach a target course grade.
81
Exam Score Calculator
Convert points earned and points possible into a percentage score.
82
Fuel Cost Calculator
Estimate trip fuel cost from distance, MPG, and fuel price.
83
MPG Calculator
Calculate miles per gallon and liters per 100 kilometers from distance and fuel used.
84
Recipe Converter
Scale a recipe ingredient amount up or down by changing servings.
85
Kitchen Measurement Converter
Convert common kitchen measurements like teaspoons, tablespoons, cups, and milliliters.
86
Paint Calculator
Estimate how many gallons of paint you need for a room.
87
Concrete Calculator
Estimate cubic yards of concrete from slab dimensions and depth.
88
Mulch Calculator
Estimate cubic yards of mulch from bed dimensions and depth.
89
Tile Calculator
Estimate how many tiles you need from room size, tile size, and waste allowance.
90
Square Footage Calculator
Calculate square footage from length and width.
91
Data Transfer Calculator
Estimate transfer time from file size and connection speed.
92
Storage Converter
Convert digital storage sizes across bytes, KB, MB, GB, and TB.
93
Ohm's Law Calculator
Calculate resistance and power from voltage and current.
94
Wattage Calculator
Calculate electrical power from voltage and current.
95
Voltage Drop Calculator
Estimate voltage drop across a wire run from current, wire resistance, and length.
96
Rent Affordability Calculator
Estimate an affordable rent budget from monthly income and a chosen income percentage.
97
VAT Calculator
Calculate VAT amount and total price from a base price and VAT rate.
98
Price Per Unit Calculator
Compare value by calculating the cost per unit from total price and quantity.
99
Overtime Calculator
Calculate total pay including overtime hours and overtime multiplier.
100
Grade Percentage Calculator
Convert earned points and possible points into a grade percentage.
101
Cash Flow Calculator
Estimate net cash flow from cash received, operating costs, capital spending, and financing payments.
102
Time Value of Money Calculator
Compare present and future value using an interest rate, time period, and compounding schedule.