Tinker 
Money
Compound Interest Calculator with Monthly DepositsFree compound interest calculator: see how a starting balance plus monthly deposits grows with daily, monthly, quarterly or yearly compounding.Loan Payment CalculatorCalculate your monthly loan payment, total interest and total cost from the loan amount, interest rate and term. Works for car, personal and home loans.Tip Calculator and Bill SplitterWork out the tip, the total bill and each person's share in seconds. Pick a tip percentage, split between any number of people and round up per person.
Health & Fitness
Running Pace Calculator (min/km and min/mile)Calculate your running pace per km and per mile from distance and time, plus speed and projected finish times for 5K, 10K, half and full marathon.Sleep Calculator: Best Bedtime and Wake-Up TimeFind the best time to go to bed or wake up based on 90-minute sleep cycles. Set your wake or bed time and how long you take to fall asleep.
Home & Garden
Concrete Calculator: Slabs, Footings and BagsWork out how much concrete you need for a slab or footing in cubic metres or cubic yards, plus the number of premix bags, with a waste allowance.Mulch Calculator: Cubic Yards, Cubic Metres and BagsWork out how much mulch you need for any garden bed in cubic yards, cubic feet, cubic metres or litres, plus the number of bags to buy.Paint Calculator: How Much Paint Do I Need?Estimate how much paint you need for a room. Enter wall size, doors, windows and coats to get litres or gallons, in metric or imperial units.
Cooking
Dates & Time
Age Calculator: Exact Age in Years, Months and DaysFind your exact age in years, months and days from your date of birth, plus total days lived and days until your next birthday. Free and instant.Days Between Dates CalculatorCount the exact number of days between two dates, plus weeks, months and weekdays. Option to include the end date. Free, instant and accurate.Time Duration Calculator: Hours Between Two TimesFind the hours and minutes between two clock times, including overnight shifts and unpaid breaks. Get decimal hours for timesheets instantly.
Conversions
Work & Study
Hourly to Salary CalculatorConvert an hourly wage to annual, monthly, biweekly, weekly and daily pay. Includes overtime, custom hours per week and weeks worked per year.Percentage Calculator: Percent Of, What Percent, ChangeFree percentage calculator: find X% of a number, what percent one number is of another, or the percentage increase or decrease between two values.Word Counter: Words, Characters and Reading TimeFree word counter: paste any text to count words, characters with and without spaces, sentences and paragraphs, and estimate reading and speaking time.
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