About convert·tables
convert·tables is a free, ad-light online resource built around one simple idea: conversions and math reference data should be fast, accurate, and distraction-free. Whether you need to convert centimeters to inches, figure out how many grams are in a cup of flour, or look up the multiplication table for 13, you can find the answer here in seconds — without pop-ups, cookie walls, or bloated interfaces.
Our mission is to make everyday calculations accessible to everyone — students doing homework, home cooks adapting recipes, teachers preparing lessons, engineers doing quick checks, and curious minds exploring numbers. We believe a good tool should get out of your way and let you focus on what matters.
What Is convert·tables?
convert·tables is a free online platform that brings together unit conversions, cooking measurement tools, and mathematical reference tables in one clean, fast-loading website. On the conversion side, you can switch between metric and imperial units across dozens of categories — length, weight, volume, temperature, area, speed, and more. Every conversion uses standard international definitions, so the results are reliable whether you're doing schoolwork or professional calculations.
Beyond unit conversion, convert·tables is a go-to reference for the kitchen and the classroom. The cooking section lets you convert cups to grams for over 60 ingredients, handle tablespoons and teaspoons, decode oven temperatures across Celsius, Fahrenheit, and gas marks, and figure out exactly how much butter you need when a recipe calls for a "stick." The math tables section covers everything from multiplication grids and prime numbers to binary and hexadecimal charts, Roman numerals, logarithm tables, trigonometry values, and the Greek alphabet — all on a single site, all free.
Our Tools
Unit Conversions
Our unit converter handles the full spectrum of everyday and scientific measurements. Length conversions cover millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Weight conversions span milligrams, grams, kilograms, metric tons, ounces, and pounds. For volume, you get milliliters, liters, US fluid ounces, US cups, pints, quarts, and gallons. Temperature conversions between Celsius, Fahrenheit, and Kelvin use exact formulas, not rounded approximations. Area conversions include square meters, square feet, acres, and hectares, while speed conversions cover km/h, mph, and m/s. Every converter includes worked examples and contextual notes so you understand not just the number, but what it means.
Cooking Measurements
Cooking across different recipe traditions is one of the most common places where unit confusion strikes. American recipes use cups, tablespoons, teaspoons, and sticks of butter — none of which map neatly to the grams and milliliters used in European and international cooking. Our cups-to-grams converter covers more than 60 ingredients — from all-purpose flour and granulated sugar to almond flour, honey, olive oil, cocoa powder, and rice — with density values sourced from the FAO Food Density Database and verified against standard culinary references. Tablespoon-to-gram and teaspoon-to-gram converters follow the same ingredient-specific approach. The oven temperature converter translates between Celsius, Fahrenheit, gas marks, and fan oven settings, so you can follow any recipe regardless of where it was written.
Math Reference Tables
The math tables section is a comprehensive reference library for students, teachers, and anyone working with numbers. Multiplication tables go from 1×1 to 12×12 with individual drill pages for each number. The prime numbers table lists all primes up to 1,000 with primality notes. Binary and hexadecimal tables cover decimal-to-binary and decimal-to-hex conversions side by side. The Roman numerals chart explains the standard system and its subtractive notation rules, with conversion for numbers up to 3,999. Logarithm tables provide base-10 and natural log values for common numbers. Trigonometry tables list sine, cosine, and tangent values at standard angles in both degrees and radians. Additional reference tables include the ASCII character chart, HTML color codes, Fibonacci sequence, powers of 2, squares and cubes, the Greek alphabet with Unicode code points, exponent rules, percentage charts, math symbols, and AWG wire gauge specifications — making convert·tables a genuine one-stop reference for everyday technical and educational needs.
Why We Built convert·tables
convert·tables started from a simple frustration: most online conversion tools are slow, cluttered, and designed more around ad revenue than user experience. You search for "cups to grams flour," you land on a page that takes four seconds to load, greets you with a cookie consent wall, serves three interstitial ads, and buries the actual answer below the fold. We've all been there, and it's unnecessarily bad. We decided to build the tool we actually wanted to use — one that loads instantly, shows the answer prominently, and keeps the interface clean and scannable.
The values behind the project are straightforward: accuracy above all, simplicity in design, and genuine usefulness for the people who need these tools every day. We don't guess at conversion factors — we source them from international standards bodies and peer-reviewed references. We don't design for engagement metrics — we design for the person who has thirty seconds and needs a correct answer. And we don't see "free" as a reason to sacrifice quality: every page on convert·tables is built to be as useful on a slow mobile connection as it is on a desktop with a fiber link.
Our Commitment to Accuracy
Every data point on convert·tables is sourced from authoritative references and reviewed for accuracy before publication. Unit conversion factors follow the International System of Units (SI) as maintained by the Bureau International des Poids et Mesures (BIPM), the global authority on measurement standards. Imperial and US customary units use the exact definitions ratified by the international yard and pound agreement of 1959. Ingredient densities for the cups-to-grams converter are drawn from the FAO/INFOODS Food Composition Databases and cross-referenced against established culinary sources, including the USDA National Nutrient Database. Roman numeral rules follow the classical Latin system as documented in historical and academic references. Trigonometric and logarithmic values are computed to full floating-point precision and displayed with appropriate significant figures. We review and update our data regularly to reflect changes in international standards, and we never use approximations where exact values are available. If you spot an error, we want to hear about it — getting the numbers right is the whole point.
Available in 5 Languages
convert·tables is fully available in English, Italian, German, French, and Spanish. Each language version is a native localization — not a machine translation layered over an English template, but content written and reviewed to read naturally in each language. Unit names, measurement terms, and cultural conventions (such as which unit systems are most familiar to speakers of each language) are adapted for each locale. This matters because a German user looking for "Tassen in Gramm" has different expectations than an American user searching for "cups to grams" — both deserve an experience that feels built for them. Whether you're a student in Milan, a home cook in Paris, a teacher in Madrid, an engineer in Berlin, or a baker in London, convert·tables is designed to meet you where you are.
Contact
Have a question, spotted an inaccuracy, or want to suggest a new conversion or table? We'd love to hear from you. convert·tables is a small project built with care, and user feedback is genuinely how we improve. Whether you're reporting a wrong conversion factor, requesting support for a new ingredient in the cups-to-grams converter, suggesting a missing math reference table, or simply want to say the site helped you — reach out at info@converttables.com.