Cooking & Food

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.