Everyday Tools

Who these tools are for

These are tools that almost everyone needs at some point, but nobody wants to install an app for. Friends splitting a dinner check. A student writing an essay with a word limit. A traveller comparing metric and imperial units. A parent working out how many days old a baby is. The common thread is that the calculation is simple, the answer is needed now, and the tool should not demand anything - not a login, not an email, not a trial period.

Because everything here runs in your browser, the math is instant and private. A draft blog post you paste into the Word Counter does not get indexed by a third party. A birth date you put into the Age Calculator does not land in a database. That is the way a utility page should work.

At a glance

• 4 tools in this hub: Tip Calculator, Age Calculator, Word Counter, and Unit Converter.
• Instant answers. The math runs as you type — no submit button, no loading spinner.
• No account required. No email, no login, no trial period.
• Works offline. After the first visit, the tools keep running on a plane or in low-signal spots.
• Private by default. Birth dates, drafts, and numbers never leave your browser.

How to choose the right tool

Each tool solves one specific recurring problem.

• You are at a restaurant with friends. The Tip Calculator splits the bill and the tip across any party size, and you can try different tip percentages to land on the number you actually want to leave.
• You need to know exact age. The Age Calculator returns the answer in the unit you need - birthdays for a card, weeks for a newborn, years and months for a resume.
• You are writing to a length limit. The Word Counter shows words, characters (with and without spaces), sentences, and paragraphs, plus an estimated reading time. Useful for essays, tweets, subject lines, and ad copy.
• You need to convert units. The Unit Converter handles length, weight, temperature, volume, area, speed, and data. Useful for cooking, travel, fitness, and understanding international specs.
• You are doing back-of-envelope math. Several finance problems also show up in daily life - discounts, tax, tip - and the Percentage Calculator in the Finance Tools hub is usually the cleanest way to do them.

Common use cases

Specific daily situations these tools handle well.

• Dinner with friends. Put the pre-tax total into the Tip Calculator, pick 18-20%, set the number of people, and each person's share is there in seconds.
• Filling in a form that asks for age. The Age Calculator gives you years and months exact as of today, which is what most forms actually want.
• Checking a university application essay. The Word Counter ticks up live as you type. Set a mental target around the limit and watch the counter to avoid last-minute trimming.
• Cooking from a foreign recipe. Use the Unit Converter for cup/ml, oz/g, and °F/°C. That lets you follow the recipe without eyeballing conversions.
• Planning a run or cycle. Convert pace and distance between metric and imperial with the Unit Converter so you can interpret a training plan regardless of where it was written.
• Counting characters for social posts. Paste the draft into the Word Counter to stay within Twitter/X, Bluesky, LinkedIn, or SMS limits.