Tools Berry — Free Online Calculators & Tools
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Free online calculators & tools
Simple tools that just work — fast, free, and private. No signup, no download.
100% free<br>No signup<br>Works in your browser<br>Nothing uploaded
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Photo & Image Tools
Edit, resize, and convert pictures — right on your phone, nothing uploaded.
Image Resizer<br>Resize a photo by pixels or percent and download it. PNG, JPEG, or WebP.
Image Format Converter<br>Convert an image between PNG, JPG, and WebP, then download it.
🗜️<br>Compress Image to Size<br>Shrink a photo under 100 KB, 200 KB, or a size you choose. Right in your browser.
Crop Image Into a Circle<br>Turn any photo into a round picture with a transparent background.
🪪<br>Passport & ID Photo Maker<br>Size a photo to passport or ID requirements and print it at home.
📄<br>Images to PDF Converter<br>Combine JPG, PNG, or WebP images into one PDF. Reorder pages, then download.
🔥 Hot<br>📝<br>PDF to Word Converter<br>Turn a PDF into an editable Word (.docx) document — free, right in your browser.
✍️<br>Signature Maker<br>Draw or type your signature and download it as a transparent PNG. On-device.
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Everyday Calculators
Quick answers for the math that comes up in daily life.
Percentage Calculator<br>Percent of a number, percent change, and discounts. Instant results.
🧮<br>Tip Calculator & Bill Splitter<br>Work out the tip and total, then split the bill evenly. Instant results.
🏷️<br>Discount Calculator<br>Sale price, how much you save, and the final price with tax for any percent off.
🥄<br>Cooking Measurement Converter<br>Cups to ml, tablespoons to teaspoons, oven °F to °C, plus a recipe scaler.
📐<br>Unit Converter<br>Length, weight, temperature, speed, area and data sizes. km to miles, kg to lb, °C to °F.
⚖️<br>BMI Calculator<br>Body Mass Index, weight category, and healthy weight range. Metric or imperial.
🩺<br>Ideal Weight & Macro Calculator<br>Ideal body-weight range (Devine, Hamwi, Robinson, Miller) plus your daily protein, carb, and fat macros.
🎓<br>GPA Calculator<br>Weighted grade point average on the 4.0 scale. Add courses by grade and credit hours.
🕐<br>Hours Calculator (Time Card)<br>Add clock-in / clock-out times per day, subtract breaks, total a week, and estimate pay. Handles overnight shifts.
🎂<br>Age Calculator<br>Your exact age in years, months and days, totals lived, and a next-birthday countdown.
📆<br>Days Between Dates<br>Duration between two dates: total days, weeks, business days, and a years/months/days breakdown.
🎄<br>Holiday Countdown<br>How many days until Christmas, Thanksgiving, or any date? Live countdown.
⏲️<br>Countdown Timer<br>Set minutes and seconds for cooking, study or workouts. Presets, pause and a beep when time's up.
⏱️<br>Stopwatch<br>Count up with a precise HH:MM:SS.cc readout, record unlimited laps with best/worst splits, and copy them.
🍅<br>Pomodoro Timer<br>Focus in 25-minute sessions with short and long breaks. Configurable lengths, auto-start and a gentle chime.
🍎<br>Calorie Calculator<br>Estimate your daily calories (TDEE) and targets to lose, maintain, or gain weight. Uses the Mifflin–St Jeor formula.
🤰<br>Pregnancy Due Date Calculator<br>Estimate your baby's due date from your last period or conception date, plus how many weeks along and your trimester.
🌸<br>Ovulation Calculator<br>Estimate your ovulation date, most fertile days, and next period from your last period and cycle length.
😴<br>Sleep Calculator<br>Find the best bedtimes or wake-up times based on 90-minute sleep cycles. Instant results.
Fraction Calculator<br>Add, subtract, multiply, or divide fractions and mixed numbers. Answers in lowest terms and as a decimal.
📊<br>Average Calculator<br>Paste a list of numbers to get the mean, median, mode, range, sum, count, and standard deviation.
📅<br>Date Calculator<br>Add or subtract days, weeks, months, or years from any date to find a future or past date.
🌐<br>Time Zone Converter<br>Convert a date and time between cities and time zones worldwide. Handles daylight saving automatically.
🏃<br>Pace Calculator<br>Find running pace, finish time, or distance in min/km or min/mile, plus 5K, 10K, half and full marathon times.
🖼️<br>Aspect Ratio Calculator<br>Simplify any width × height into its ratio (like 1920×1080 → 16:9), or lock a ratio and resize.
🎨<br>Paint Calculator<br>Work out how much paint to buy from your room size, doors and windows, and number of coats.
🧱<br>Tile Calculator<br>See how many tiles and boxes to buy from your room and tile size, with a waste allowance for cuts.
🎲<br>Random Number Generator<br>Pick one or many random numbers in any range, with an option for no repeats. Great for raffles and draws.
🏛️<br>Roman Numeral Converter<br>Turn any number (1–3999) into Roman numerals, or convert a Roman numeral back to a number.
🍽️<br>Recipe Scaler<br>Paste an ingredient list, set old and new servings, and halve, double, or resize every amount.
Money & Finance
Plan your paycheck, loans, and what your dollar is really worth.
New tax-law calculators (2025–2026)
⏱️<br>No Tax on Overtime Calculator<br>New 2025 law: see how much of...