Automotive calculators
Choose a focused calculator for automotive planning, estimation, and decision-making.
29 calculators available
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Automotive Percentage Calculator
Compute percentages, percent of, percent change, and percent add/subtract for automotive planning.
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Automotive Tip Calculator
Calculate tip amount, total bill, and amount per person when splitting a check.
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Automotive Discount Calculator
Compute final price after a discount, with optional sales tax, plus total savings.
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Automotive Markup Calculator
Compute markup amount and markup percentage from cost and selling price.
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Automotive Margin Calculator
Compute gross profit and margin percentage from revenue and cost.
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Automotive Ratio Calculator
Simplify a ratio to lowest terms and show the equivalent unit ratio.
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Automotive Average Calculator
Compute the mean, sum, and count of a set of numbers.
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Automotive Unit Converter
Convert length, weight, and volume between metric and imperial units.
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Automotive Age Calculator
Compute exact age in years, months, and days from a date of birth.
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Automotive Date Difference
Calculate the number of days, weeks, and calendar months between two dates.
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Automotive Time Duration
Add hours and minutes, with carry-over into a total duration.
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Automotive BMI Calculator
Compute body mass index from weight and height, with category interpretation.
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Automotive BMR Calculator
Estimate basal metabolic rate using the Mifflin-St Jeor equation.
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Automotive TDEE Calculator
Estimate total daily energy expenditure from BMR and activity level.
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Automotive Body Fat Estimate
Estimate body fat percentage from BMI, age, and sex using a validated approximation.
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Automotive Calories Burned
Estimate calories burned during physical activity using MET values.
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Automotive Water Intake
Estimate recommended daily water intake from body weight and activity.
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Automotive One Rep Max
Estimate one-repetition maximum strength from a submaximal set using the Epley formula.
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Automotive Target Heart Rate
Compute target heart rate zones using the Karvonen method.
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Automotive Macro Split
Convert a calorie target into grams of protein, carbs, and fat.
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Automotive Ideal Weight
Estimate a healthy body weight range from height and sex (Devine method).
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Automotive Auto Loan Payment
Estimate monthly payment on a new or used car loan.
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Automotive Mileage Reimbursement
Reimbursement owed for business miles driven at the IRS standard rate.
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Automotive Fuel Cost
Total fuel cost for a trip given distance, MPG, and fuel price.
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Automotive Battery Life
Estimate device runtime from battery capacity and load.
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Automotive Ohm's Law
Solve for voltage, current, resistance, or power.
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Automotive Voltage Drop
Voltage drop across a wire run at a given current and length.
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Automotive Gear Ratio
Ratio between driving and driven gears, plus output RPM.
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Automotive Bolt Pattern
Compute the bolt-pattern circle diameter from center-to-center measurements.