Practical online tools
Everyday calculations, made simpler.
ToolRuler brings useful calculators and converters together in one clear, easy-to-use place. Calculate dates, compare financial figures, convert cooking measurements and solve common work-related questions.
Tool directory
Find the right tool
Search by topic or browse the categories below. Each tool includes a focused calculator or converter plus a plain-language explanation.
Days Between Dates Calculator
Find the exact number of days between two calendar dates for planning, deadlines or simple date comparisons.
Dates & timePrice-to-Earnings Ratio Calculator
Calculate a stock’s P/E ratio from its market price and earnings per share, with a concise explanation of the result.
Money & financeInterest per Day Calculator
Estimate how much interest accrues each day on a loan, balance or savings amount using a stated annual rate.
Money & financeLoan Repayment Calculator
Estimate regular loan payments using the amount borrowed, interest rate and repayment period.
Money & financeMonthly Savings Calculator
Project how regular monthly deposits may grow over time using an assumed return and savings period.
Money & financePortfolio Dividend Yield Calculator
Calculate the weighted dividend yield of a portfolio using each holding’s value and expected annual dividend.
Money & financeButter: Grams to Cups
Convert a specified amount of butter from grams to US cups for recipes and baking.
Kitchen conversionGranulated Sugar: Grams to Cups
Convert granulated sugar from metric grams to US cup measurements using an ingredient-specific conversion.
Kitchen conversionSour Cream: Grams to Cups
Convert sour cream from grams to cups without relying on a one-size-fits-all volume conversion.
Kitchen conversionMilk: Deciliters to Grams
Convert milk from deciliters to grams for recipes that mix Scandinavian metric volumes with weight measurements.
Kitchen conversionWhole-Wheat Flour: Cups to Grams
Convert cups of whole-wheat flour into grams for more consistent baking measurements.
Kitchen conversionOats: Grams to Cups
Convert rolled oats from grams to cups for breakfast recipes, baking and portion planning.
Kitchen conversionSoy Sauce: Grams to Tablespoons
Convert soy sauce from grams to tablespoons using a conversion tailored to the ingredient.
Kitchen conversionHoney: Teaspoons to Grams
Convert teaspoons of honey to grams for recipes, nutrition tracking and precise portioning.
Kitchen conversionGreek Yogurt: Grams to Cups
Convert Greek yogurt from grams to cups for cooking, baking, smoothies and portion estimates.
Kitchen conversionWork Hours Calculator
Calculate hours worked from start and end times, including breaks, for shifts or daily time records.
Work & salarySalary Percentage Calculator
Calculate a salary increase or decrease as a percentage and compare the old and new pay figures.
Work & salaryNo matching tool was found. Try a broader search term.
Built for clarity
A simple three-step approach
ToolRuler is designed to make common calculations understandable, not just produce an unexplained number.
Choose a focused tool
Each page solves one clearly defined problem, so you can reach the relevant calculator without navigating an oversized all-purpose form.
Enter your own values
Provide the dates, amounts, units or percentages needed for the calculation. The tools are intended to work without creating an account.
Review the explanation
Use the supporting notes, formulas and examples to understand what the result represents and where estimates or assumptions may apply.
About ToolRuler
Useful tools without unnecessary friction
Many everyday questions involve a small calculation: how many days remain until a deadline, what a monthly saving habit could become, how a loan payment is estimated, or how a recipe measurement translates between units.
ToolRuler organizes these tasks into dedicated pages. The goal is to combine a usable calculator with enough context to help visitors understand the inputs, method and limitations of the result.
Start with the calculation you need today
Browse the complete ToolRuler directory and open a calculator or converter in one click.
Browse all 17 tools