Free online tools
Small, single-purpose tools that work in your browser. No sign-up, no limits, and your data stays on your device.
Kitchen and baking
- Cake pan size converter8 inch to 9 inch round is 1.27x. Convert any cake pan: round, square, 9x13, loaf, bundt. Get scaled ingredients and a bake time guide.
- Sourdough starter feeding calculatorFree sourdough starter feeding calculator. Get grams of starter, flour and water for 1:1:1, 1:5:5 or any ratio, plus a rough peak time.
Gym and running
- Barbell plate calculatorEnter a target weight and see the plates to load on each side of the barbell. lb and kg, any bar, your plates, warm-up sets.
- Warm up set calculatorEnter your work weight. Get warm up sets from the empty bar, rounded to plates you can load, with plates per side. lb and kg, print view.
- Percent of 1RM calculatorEnter your 1RM and get 50% to 100% as loadable weights with plates per side. lb and kg. Also finds the percent of any weight, plus rep max estimates.
- 5/3/1 program calculatorEnter your lifts and get the full 4-week 5/3/1 cycle: sets, reps, weights rounded to your plates, BBB, FSL, SSL, jokers, deload and a print sheet.
- GZCLP calculatorFree GZCLP calculator. Enter your weights, see today's T1, T2 and T3 sets, plates per side, and the next session after a pass or a fail.
- RPE chart and calculatorEditable RPE chart with RIR. Enter weight, reps and RPE to get your estimated 1RM and the weight for any other reps and RPE, rounded to plates.
- Treadmill pace converterTurn treadmill speed into pace and pace into speed. mph, km/h, min/mile, min/km, incline-adjusted flat pace, and 5K to marathon times.
- Track split calculatorTurn a goal time into 400 m, 300 m or 200 m lap splits. Even or negative split, lap time to finish time, interval builder and a printable pace band.
Home and trades
- Board and Batten CalculatorFree board and batten spacing calculator. Get the exact gap, a mark for every batten, a to-scale drawing and the boards to buy.
- Rolling Offset CalculatorFree rolling offset calculator for pipe and EMT conduit. Get true offset, travel, run, shrink and cut length to 1/16 inch. No sign-up.
- Rebar weight calculatorFree rebar weight calculator. Enter bar size, length and quantity to get total lb, kg and tons. ASTM A615 weights, metric bars, copy or print the list.
Measure, crafts and print
- Online Ruler: Actual Size in cm, mm and InchesA free online ruler that is true to size on your screen. Calibrate with a credit card in 20 seconds, then measure in cm, mm or inches with guides.
- Knitting increase evenly calculatorIncrease or decrease evenly across a row, for knitting or crochet. Enter your stitches and how many to add or remove. Get the exact pattern line, flat or in the round, plus a picture of your row.
- Print a poster on multiple pagesSplit any image into a multi-page PDF poster. Free, no watermark, no sign-up. Your picture never leaves your device.
- Change image DPI to 300Change the DPI of a JPEG or PNG to 300, 150, 72 or any value. Pixels stay untouched. Runs in your browser, so your images never leave your device.
Work and data
- Markdown to PDFConvert Markdown to PDF free in your browser. Live preview, tables, code highlighting, themes, Letter or A4. No upload, no watermark, no limit.
- Convert a column to a comma separated listPaste a column from Excel, Sheets or SQL and get a comma separated list at once. Add quotes, remove duplicates, sort. Free, private, no sign-up.
- Count the drawer calculatorCount your cash drawer at shift end. Enter bills, coins and rolls, set your float, and see the deposit and which bills to pull. Free and private.