Other Calculators

Handy tools that do not fit anywhere else.

All other calculators

• Aquarium Volume CalculatorEnter the inside length, width and height of a rectangular tank to get its volume, the water it holds and that water's weight. The guide covers typical tank sizes and round tanks.
• Body Shape CalculatorMeasure your bust, waist and hips, enter them in inches or centimetres, and the calculator names the closest of four common body shapes. The guide shows how to measure and exactly which ratios decide the result.
• Damage Per Second (DPS) CalculatorEnter a weapon's damage and attack speed, then add critical hits, elemental damage, magazine size and reload time if they matter. The result splits base, critical, elemental and total DPS.
• Dog Years CalculatorEnter your dog's age, or its date of birth, and the calculator converts it into a human-age figure expressed as years plus months. The guide explains the logarithmic formula behind it, shows a dog age chart and explains why the old times-seven rule is a myth.
• Final Grade CalculatorEnter your current grade, the grade you are aiming for and how much the final counts toward the course. The calculator tells you the minimum exam score that gets you there, or says so if it cannot be done.
• GDPR Compliance Cost CalculatorPick a region and a currency, then choose something to measure the total against, such as pizzas, wheelchairs or hours of skilled work. The calculator turns an abstract multi-billion estimate into a count you can picture.
• GPA CalculatorEnter how many courses you want to include, then a grade and a number of credits for each. You get the credit-weighted GPA, the matching letter grade and the total credits.
• Grade CalculatorThree tools in one: convert marks to a percentage and letter, combine graded work into a weighted course grade (with the score you need on the final), or see how a new grade would change your current average.
• Height ComparisonChoose your unit system, pick how many people to compare, then type a height for each. The tool reports the difference between every pair and lists each person against the tallest.
• IQ Percentile CalculatorType an IQ score and the standard deviation of the test it came from. You get the percentile, the share of people who score above or below you, and how rare the score is.
• Lucky Number Generator 🍀Pick how many numbers you want and the range they should come from, then press the button for a fresh set. Leave the unique box ticked for a lottery-style draw with no repeats.
• Marks Percentage CalculatorType the marks you scored and the total marks available to get your percentage. If you have marks from several tests, enter them all in the first box and add up the totals in the second.
• Odds CalculatorEnter odds in any one format and see them in all the others, together with the implied probability. Add a stake to see what you would win and what you would be paid.
• Percent Off CalculatorEnter the percent off and the original price to see the final price and your saving. Switch the mode to find the percentage discount when you already know both prices.
• Pool Volume CalculatorPick a rectangular or circular pool, enter its dimensions in feet, yards, centimetres or metres, and get the volume, the amount of water needed and the weight of the water.
• Random Password GeneratorSet the length and the kinds of characters you want, then press the button for a fresh random password. Copy it into your password manager and use it for one account only.
• Sobriety CalculatorPick the day your sobriety began and get the time since then in years, months and days, together with weeks, total days and a heartbeat count. The guide explains how the figures are worked out.
• Tip CalculatorEnter the bill, choose a tip percentage and, if you are sharing, the number of people. You get the total, the tip, and each person's share, with optional rounding up.
• Toilet Paper CalculatorChoose whether you want to know how many rolls to buy for a date range or how long the rolls you already own will last, then describe your household. The guide shows the arithmetic behind both answers.