80 tools

Everyday, education and travel

80 free everyday, education and travel tools, all running in your browser with no sign-up.

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GPA calculator (5.0 scale)Work out your semester GPA on the 5.0 scale used by Saudi universities from course grades and credit hours, with total points and the rating.
GPA calculator (4.0 scale)Calculate a GPA on the 4.0 scale, either the US style with plus and minus grades or the Saudi 4-point scale, from grades and credit hours.
Cumulative GPA calculatorFind your new cumulative GPA after this semester from your previous GPA and hours plus the semester GPA and hours, on a 5.0 or 4.0 scale.
Raise GPA calculatorFind the semester GPA you need next term to reach a target cumulative GPA, and the highest cumulative GPA you could reach, on a 5.0 or 4.0 scale.
Hours needed to raise GPACalculate how many credit hours and semesters at an expected term GPA it takes for your cumulative GPA to reach a target, on a 5.0 or 4.0 scale.
Weighted grade calculatorCalculate your course grade from assignment and exam scores and their weights, with the total weight and the points earned so far.
Final exam score needed calculatorFind the score you need on the final exam to reach the course grade you want, with a table for A, B, C and D targets.
Final course grade calculatorCalculate your final course grade once you know the final exam score and its weight, with the letter grade and how much the grade moved.
Percentage to letter grade converterConvert a percentage to a letter grade and grade points on the Saudi 5.0 scale (Excellent plus to Fail) or the US 4.0 scale.
Test score percentage calculatorTurn a test score into a percentage of the full mark, with the letter grade and the number of points missed.
Easy grader chart for teachersA teacher tool: enter the number of questions to get a full chart of the percentage and letter grade for every number of wrong answers.
Marks percentage calculatorAdd up your subject marks and turn them into an overall percentage of the total maximum marks, with the percentage for each subject.
Grade curve calculatorCurve a test score three common ways: add the gap to the top score, scale to the top score, or use the square root curve.
Exam study schedule plannerSpread your chapters over the days left before an exam, see the daily study hours, keep review days, and get a dated day by day plan.
Pomodoro study session plannerSplit your study time into focus sessions with short and long breaks using the Pomodoro method, and see the finish time and schedule.
Book reading time calculatorWork out how long a book takes to read from its pages, words per page and your reading speed, and how many days at a set daily time.
Attendance percentage calculatorCalculate your attendance percentage, how many classes in a row you need to reach the required rate, or how many you can still miss.
Absence limit calculatorFind the most absences allowed in a course before exam denial, how many you have left and your current absence rate, with an editable limit.
Saudi weighted percentage calculatorCalculate the Saudi university admission weighted percentage from your high school grade, Qudurat and Tahsili, using 30/30/40 or your university weights.
Required Tahsili score calculatorFind the Tahsili score you need to reach a target weighted percentage, from your high school grade, Qudurat score and the admission weights.
Travel time calculatorWork out how long a trip takes from distance and average speed, with break time added so you can plan your arrival.
Fuel cost split calculatorFind the fuel cost of a trip from distance, car consumption and price per liter, then split it evenly among travelers.
Trip cost per person calculatorAdd up transport, lodging, food and activities with a contingency buffer to get the total trip cost and each person's share.
Flight distance calculator (coordinates)Great-circle distance between two latitude and longitude points using the haversine formula, in km, miles and nautical miles.
Jet lag recovery calculatorEstimate how many days your body needs after crossing time zones, using the one day per zone rule, plus the expected date.
Luggage weight allowance calculatorAdd up your bag weights, compare them with your ticket allowance and see the weight left or the excess and its fee.
Hotel stay cost calculatorWork out a hotel bill from nightly rate, nights and rooms, with taxes and fees added, plus your check-out date.
Per diem calculatorTotal a business trip per diem, with a reduced rate for the first and last travel days and a deduction for meals provided.
Speed, distance and time calculatorChoose what to find, time, speed or distance, enter the other two and get the answer in metric and imperial units.
Walking time calculatorFind how long it takes to walk a given distance at your pace, with a step count from your stride length, for city walks and tours.
Driving range and fuel stops calculatorFind how far your car goes on a full tank with a safety reserve, and how many refuel stops a long trip needs.
Flight arrival time calculatorFind your arrival time in local destination time from departure time, flight duration and the time difference, with day change.
Flight duration calculatorFind the real length of a flight from local departure and arrival times and each city's offset from UTC.
Layover time calculatorFind the wait between your arrival and the next departure at the same airport, and compare it with the minimum connection time.
Daily travel budget calculatorSee how much you can spend each day of your trip after taking prepaid flights and hotel out of your total budget.
Road trip break plannerWork out how many rest stops a long drive needs and the trip time with breaks, using a 15 minutes every 2 hours rule.
Car rental cost calculatorEstimate a car rental bill from the daily rate, insurance, extra kilometers over the allowance, fees and tax.
Road trip days calculatorFind how many days a long drive takes from your average speed and the number of hours you want to drive each day.
Mileage reimbursement calculatorWork out the payback for using your own car for work from kilometers, rate per km and number of trips, plus parking and tolls.
Baggage size calculatorAdd a bag's length, width and height, compare the total with the airline limit, and see its volume in liters and size in inches.
Random number generatorDraw one or more random whole numbers between any minimum and maximum, with no-repeat and sort options, using a fair generator in your browser.
Dice rollerRoll up to 100 dice with 4, 6, 8, 10, 12, 20 or 100 sides, add a modifier to the total and see each roll, plus the lowest, highest and average total.
Coin flip: heads or tailsFlip a virtual coin once or up to 1000 times and get heads or tails, the count of each side and the full sequence of flips.
Random name pickerPaste a list of names or options and pick one or several at random without repeats, for giveaway winners, raffles and class draws.
Random team generatorSplit a list of names into balanced random teams, either by number of teams or by people per team, for class, sports and work groups.
Strong password generatorCreate a random password up to 128 characters from upper and lower case letters, digits and symbols, with its strength in bits, right in your browser.
Lottery number generatorDraw random lottery numbers without repeats for any format, such as 6 of 49 or 5 of 69 plus a bonus ball, and see the odds of matching them all.
Random order generatorPut a list of names or tasks in a fair random order to decide turns for presentations, games or shifts, and see how many orders were possible.
Tie breaker dice roll-offSettle a tie between two or more players with a dice roll-off: everyone rolls, those tied on the highest roll again until one winner is left.
Bingo card generatorMake up to 10 random 75-ball bingo cards: column B from 1 to 15 through O from 61 to 75, with an optional free space in the centre.
Bingo number callerCall the next random bingo ball for a 75 or 90 ball game, skipping the numbers already called and showing how many balls are left.
Yes or no generatorGet a random yes or no answer to settle a small decision you are stuck on, with an option to add maybe as a third equally likely answer.
Random letter generatorDraw one or more random letters from the 28 Arabic letters or the 26 English letters, with a no-repeat option, for word games and classes.
Weighted random pickerPick a random item from a list where each item has a weight or ticket count, so its chance matches its weight, with a table of every chance.
Random date generatorDraw one or more random dates between two dates you choose, with a no-repeat option, to pick a day for an activity, a meeting or test data.
Secret Santa generatorRun a fair gift exchange draw where nobody gets their own name, for office, family or friend groups, with a clear giver and receiver list.
Random PIN generatorGenerate random numeric PIN codes of 4 to 12 digits, with an option to skip weak ones like 1111, 1234 and 9876, and see how many PINs are possible.
Random playing card generatorDraw one or more random cards from a standard 52-card deck, with an option to add two jokers, and no card repeated in the same draw.
Dice probability calculatorWork out the chance of rolling an exact total with several dice, plus the chance of that total or more and of that total or less.
Lottery odds calculatorFind the odds of matching a given number of balls in any lottery where k numbers are drawn from N, such as 3 or all 6 in a 6 of 49 game.
Tip calculatorEnter the bill and a tip rate to see the tip, the total and what each person pays. You can also leave the tax out of the tip.
Split the bill calculatorSplit a restaurant bill between friends after adding the service charge and tax, and round each share up with the surplus shown.
Itemized bill splitterList what each person ordered and it spreads service and tax by order size, splits the delivery fee evenly and gives each person a total.
Buy X get Y free calculatorFind the real discount in offers like buy 2 get 1 free or second item half price, and the effective price you pay per item.
Dog age calculator in human yearsConvert your dog age to human years by body weight using the age chart published by AAHA, plus the 2020 epigenetic clock estimate.
Cat age calculator in human yearsConvert your cat age to human years and see its life stage, based on the AAFP and AAHA feline life stage guidelines.
Pet food cost calculatorWork out the daily, monthly and yearly cost of cat or dog food from the bag price, bag weight and daily portion, and how long a bag lasts.
Gift budget plannerPlan a gift budget by name: set amounts for some people, let the rest share what is left evenly, and see what remains or goes over.
Eidiya calculatorAdd up the Eid money you will hand out to children and adults by group and amount, and compare it with your budget before Eid.
Wedding budget calculatorSplit a wedding budget across venue and catering, attire, photography, decor and more with percentages you edit, and see the cost per guest.
Party and event budget calculatorEstimate the cost of a birthday, graduation or dinner party from guests, cost per head and fixed costs, with a contingency and cost per guest.
Subscription cost calculatorList your monthly, yearly and weekly subscriptions such as streaming, apps and the gym, and see what they cost per month and per year.
Coffee cost per year calculatorSee what your cafe coffee habit costs per week, month, year and over 10 years, and how much you would save by making it at home.
Smoking cost calculatorWork out what cigarettes cost you per day, month, year and over 10 years from how many you smoke and the pack price, and the total so far.
Fuel price change calculatorSee how much your monthly and yearly fuel spending changes after a price change per liter, based on your distance and car consumption.
Cost per use calculatorFind what an item costs you each time you use it, from price, uses per week, years of use, resale value and upkeep.
Price in work hours calculatorTurn any price into hours and days of work based on your monthly salary or hourly pay, and see its share of your monthly income before you buy.
Grocery list total calculatorType your grocery list with quantities and prices to get the total, tax, item count and priciest line, checked against your budget before paying.
Rent split by room size calculatorSplit a shared flat rent between housemates by the size of each room, with an optional part split evenly for the shared spaces.
Bill split by days stayedSplit an electricity, water or internet bill between housemates by the number of days each person stayed during the billing period.