Cooking & Food
Cooking & food tools are free online calculators that scale recipes, balance dough by weight, set brew and rice ratios, and convert oven temperatures and settings in seconds.
Free air fryer conversion calculator that turns any oven recipe into air-fryer settings. Enter oven temperature and time to get the air-fryer temp and minutes.
Price your baked goods for profit. Enter ingredient, labor and overhead costs plus a target margin to get a per-unit selling price and profit, math shown.
Get cheap, filling dinner ideas built on pasta, rice, beans, lentils and budget cuts. Free budget dinner idea picker to eat well and spend less every week.
Get easy camping dinner ideas for foil packets, campfire cooking, one-pot stove meals and make-ahead options. Free camping dinner idea picker for your next trip.
Get endless chicken dinner ideas from quick weeknight meals to baked, global and comfort dishes. Free chicken dinner idea picker to beat chicken boredom for good.
Plan your festive feast in seconds. Get Christmas dinner ideas for mains, sides, vegetarian centrepieces and desserts with this free Christmas dinner idea picker.
Free coffee to water ratio calculator. Enter a brew ratio like 1:16 with your water or coffee in grams to get the exact other amount for pour over and more.
Get romantic at-home date night dinner ideas from elegant and cozy to cook-together meals. Free date night dinner idea picker for a special evening for two.
Get dinner-for-two ideas from quick weeknight meals to cozy comfort food and a little fancy. Free dinner for two idea picker portioned for couples and small households.
Beat the what's-for-dinner question with this free family dinner idea picker. Get quick, one-pot, kid-friendly and meat-free family dinner ideas in one click.
Get simple, low-effort dinner ideas including one-pot, slow cooker, 5-ingredient and no-cook meals. Free easy dinner idea picker for stress-free weeknights.
End the week with a treat. Get fun Friday night dinner ideas from better-than-takeout to pizza, family fun and cozy nights in with this free Friday dinner idea picker.
Get spooky Halloween dinner ideas for kids, themed mains, party finger food and cozy fall comfort meals. Free Halloween dinner idea picker for a frightfully fun night.
Calculate beer ABV from original and final gravity for your homebrew. Get alcohol by volume, ABW and apparent attenuation instantly with the formula shown.
Get low-carb keto dinner ideas with chicken, beef, seafood and vegetarian options. Free keto dinner idea picker for easy, high-fat, low-carb evening meals.
Get instant meatless dinner ideas for Meatless Monday and beyond. Free vegetarian dinner idea picker with pasta, hearty, quick and high-protein meat-free meals.
Ring in the new year with the perfect meal. Get New Year dinner ideas for elegant mains, party finger food, lucky traditions and desserts with this free idea picker.
Free oven temperature conversion tool: convert °C to °F and find the nearest UK gas mark instantly. Enter any oven temperature for the exact equivalent and a chart.
Free pizza dough calculator using baker's percentages. Enter dough balls, ball weight and hydration to get exact flour, water, salt, oil and yeast in grams.
Get crowd-pleasing potluck dish ideas for mains, sides, finger food and desserts that travel well. Free potluck dinner idea picker for parties and gatherings.
Get fast dinner ideas you can make in under 30 minutes. Free quick dinner idea picker with chicken, beef, seafood and vegetarian options for busy weeknights.
Free recipe scaler that resizes any recipe between serving counts. Enter original and desired servings to get the exact scaling factor, then multiply every ingredient by it.
Get instant salmon dinner ideas from baked and sheet-pan to bowls, salads and low-carb plates. Free salmon dinner idea picker for healthy weeknight meals.
Get instant shrimp dinner ideas from scampi and stir-fries to tacos and low-carb plates. Free shrimp dinner idea picker for quick, tasty weeknight meals.
Free sourdough hydration calculator. Enter flour and water in grams to find your dough hydration percentage, or set a target to find the water you need.
Stuck on what to cook this weekend? Get instant Sunday dinner ideas from roasts to comfort food and one-pan meals with this free Sunday dinner idea picker.
Plan your Thanksgiving feast in seconds. Get ideas for the turkey, sides, vegetarian mains and pies with this free Thanksgiving dinner idea picker and menu planner.
Get plant-based vegan dinner ideas from grain bowls and pasta to hearty comfort food and quick meals. Free vegan dinner idea picker for easy weeknight cooking.
Free rice to water ratio calculator. Enter cups of white, basmati, jasmine, brown or sushi rice to get the exact water in cups and millilitres every time.
Find out how many bottles of wine to buy for a party. Enter guests, hours and glasses per person to get bottles and cases needed, with the math shown.
What are cooking & food tools?
Cooking and food tools are free online calculators that handle everyday kitchen math: resizing a recipe, balancing dough by weight, setting a brew or rice ratio, and converting oven instructions into air-fryer settings or another temperature scale. Home cooks, bakers, baristas, and caterers use them to keep proportions consistent whether they cook for two or for fifty.
Cooking & Food tools on Toolzent
Here are the cooking and food tools currently available, with what each one does.
| Tool | What it does |
|---|---|
| Recipe Scaler | Resizes any recipe between serving counts using a single scaling factor (desired servings divided by original) to multiply every ingredient by. |
| Pizza Dough Calculator | Works out exact flour, water, salt, oil, and yeast in grams from your ball count, ball weight, and baker’s percentages. |
| Coffee-to-Water Ratio Calculator | Turns a brew ratio like 1:16 into exact grams, finding the coffee from the water or the water from the coffee. |
| Air Fryer Conversion Calculator | Converts an oven temperature and time into a lower air-fryer temperature and a shorter cook time. |
| Rice to Water Ratio Calculator | Calculates how much water to add for a given amount of rice using the ratio for your rice type. |
| Sourdough Hydration Calculator | Finds dough hydration as water divided by flour, and solves for flour, water, or starter from a target. |
| Oven Temperature Converter | Converts oven settings between degrees Celsius, degrees Fahrenheit, and gas mark numbers either way. |
Common kitchen ratios and conversions
The references below match the formulas the tools use, so you can sanity-check any result at a glance.
| Task | Rule of thumb |
|---|---|
| Recipe scaling | factor = desired servings divided by original servings |
| Coffee brew strength | 1:15 to 1:17 water by weight for filter coffee |
| White rice (volume) | about 1 part rice to 1.5 to 2 parts water |
| Dough hydration | hydration % = water weight divided by flour weight, times 100 |
| Oven to air fryer | lower temperature about 25 F, cut time about 20% |
| Celsius to Fahrenheit | F = (C times 9/5) + 32 |
For example, at 70% hydration with 500 g of flour you need 350 g of water, and 200 C converts to 392 F.
How do I choose the right tool?
Match your question to the tool that answers it:
- Halving, doubling, or cooking for a different crowd? Use the Recipe Scaler.
- Need precise pizza flour, water, salt, oil, and yeast weights? Use the Pizza Dough Calculator.
- Dialing in sourdough crumb and stickiness? Use the Sourdough Hydration Calculator.
- Setting pour over, French press, or drip coffee strength? Use the Coffee-to-Water Ratio Calculator.
- Unsure how much water to add to rice? Use the Rice to Water Ratio Calculator.
- Taking an oven recipe to the air fryer? Use the Air Fryer Conversion Calculator.
- Recipe uses a different temperature scale or gas mark? Use the Oven Temperature Converter.
If your problem is about quantity, reach for the Recipe Scaler, Pizza Dough Calculator, or Sourdough Hydration Calculator; if it is about strength or settings, reach for the coffee, rice, air-fryer, or oven-temperature tool.
Why use Toolzent’s cooking & food tools?
Toolzent’s cooking and food tools are built to be useful and trustworthy:
- 100% free with no sign-up or hidden paywall.
- Run privately in your browser, so the amounts and recipes you enter stay on your device.
- Instant results the moment you type your numbers.
- Mobile-friendly and fast in the kitchen on a phone or tablet.
- Accurate, standard formulas with a worked example on each tool page.
Because the math uses the same factors, ratios, and baker’s percentages cooks rely on every day, the figures match what you would work out by hand, without the rounding slips.
Explore related calculators in Unit Converters, Math & Algebra, and Health & Medical.
Frequently asked questions
Are these cooking & food tools free to use?+
Yes. Every cooking and food calculator on Toolzent is 100% free, with no account, sign-up, or download required.
Do I need to install anything or create an account?+
No. The tools run entirely in your web browser, so there is nothing to install and no login to remember.
How do I scale a recipe to a different number of servings?+
Use the Recipe Scaler: it divides desired servings by original servings to get a factor, then multiplies each ingredient by it. Going from 4 to 6 servings gives a factor of 1.5, so 200 g becomes 300 g.
What is dough hydration and why does it matter?+
Hydration is the weight of water divided by the weight of flour, shown as a percentage. Higher hydration gives a more open, airy crumb but stickier dough; the Sourdough Hydration Calculator finds your exact figure.
What rice-to-water ratio should I use?+
White long-grain rice is usually about 1 part rice to 1.5 to 2 parts water by volume; brown rice needs more. The Rice to Water Ratio Calculator returns exact amounts for your portion size.
How do I convert an oven recipe to an air fryer?+
Use the Air Fryer Conversion Calculator: it lowers temperature by about 25 degrees F and cuts time by roughly 20%, so 400 F for 25 min becomes about 375 F for 20 min. Check doneness early.