Hiseem is a growing collection of free, single-purpose calculators. Twenty-four tools cover the measurement conversions bakers and home cooks look up most often — grams, cups, ounces, oven temperatures, pan sizes and bake time, leavening and buttermilk, egg sizes, yeast, salt, honey, gelatin, turkey roasting time and meat doneness temperatures — plus a dedicated set of Thai ingredient converters for fish sauce, coconut milk, palm sugar, tamarind and more, each with instant results and enough reference detail to trust the number.
Eighteen focused tools, all calculated instantly in your browser. No ads pop over the result, no app to install.
Convert flour between grams, cups, tablespoons and ounces — with separate figures for all-purpose, bread, cake, whole wheat and self-rising flour.
Open converter →Convert granulated, packed brown, and powdered (icing) sugar between grams, cups and tablespoons.
Open converter →Switch between grams, cups, tablespoons, ounces and US butter sticks in either direction.
Open converter →Convert Fahrenheit, Celsius and Gas Mark, with the full oven-temperature reference table.
Open converter →Work out how to scale a recipe when you only have a different round or square pan size.
Open converter →Convert cooking liquids between ml, litres, US cups, tablespoons, teaspoons and fluid ounces.
Open converter →Convert cocoa powder between grams, cups, tablespoons and ounces — natural vs. Dutch-process.
Open converter →Grams to cups for regular, mini, mega/jumbo, dark and milk chocolate chips.
Open converter →Substitute one for the other at the correct ratio, with the acid warning you need.
Open converter →Work out the milk and vinegar or lemon juice for any amount of buttermilk substitute.
Open converter →Estimate a new bake time when you switch to a different pan size, from the area ratio.
Open converter →Convert egg counts between Jumbo, Extra Large, Large, Medium, Small and Peewee using the official USDA chart.
Open converter →Convert between fresh, active dry and instant yeast using Red Star's published conversion ratios.
Open converter →Convert between table salt, Morton kosher and Diamond Crystal kosher by weight (exact) and volume (approximate).
Open converter →Convert sugar to honey with the liquid, baking soda, oven temperature and yeast adjustments included.
Open converter →Convert powdered gelatin to sheet gelatin, and between sheet grades — Titanium, Bronze, Silver, Gold, Platinum — by count, not weight.
Open converter →Estimate roasting time by weight, stuffed or unstuffed, at 325°F or 350°F, using USDA's official Thanksgiving turkey guide.
Open calculator →USDA safe minimum internal temperatures for beef, pork, poultry, fish, ham and leftovers — plus chef doneness preferences kept clearly separate.
Open guide →Six tools for the Thai pantry staples that don't map neatly to Western units — fish sauce, coconut milk, palm sugar, tamarind, sticky rice flour and chili heat.
Convert fish sauce between mL, grams, teaspoons and tablespoons using its real density (1.24 g/mL).
Open converter →Convert any coconut milk can size — US, UK, Australian, Thai or Aroy-D — into cups and tablespoons.
Open converter →Convert glutinous (sticky) rice flour between grams, cups and tablespoons — a different ingredient from wheat flour.
Open converter →Convert palm sugar between grams, cups and tablespoons — with a form toggle and a wide, honest density range.
Open converter →Convert between tamarind pulp/block, concentrate and paste using approximate, adjustable ratios.
Open converter →A Scoville-unit reference chart for Thai chilies compared to jalapeño, cayenne and habanero.
Open guide →Hiseem is organised into sections by topic so new tool categories can be added over time without disturbing the ones already live — for example a future /game/ section for small browser games. Baking calculators live under /calculator/; suggestions for the next category are welcome via the contact page.