Guide Hub

Calculator Guides and Tool Search Hub

Use short guides to understand the calculation, then open the matching tool for a fast result. The hub also groups tools by search intent for each supported language.

Updated July 17, 2026

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English search guide

Practical calculators for money, files, and daily work

Curated tools for high-intent English searches where users need a clear answer or downloadable output in one visit.

Priority search intents

check_circleMoney decisions: mortgages, debt payoff, and currency
check_circleFile tasks: PDF, image conversion, and QR codes
check_circleDeveloper work: Base64, regex, and secure passwords

Recommended English tool paths

Choose the outcome you need, then move between related tools without restarting your work.

Money planning

Payment, payoff, and exchange decisions

Mortgage Calculatorarrow_forwardEstimate payment, interest, and the effect of extra principal.Debt Payoff Calculatorarrow_forwardCompare payoff order, time, and interest saved.Currency Converterarrow_forwardConvert currencies with current reference rates and fees.

PDF and sharing

Create or transform a file immediately

PDF Workspacearrow_forwardConvert, merge, split, rotate, and organize PDF files.Image Converterarrow_forwardConvert common image formats in the browser.QR Code Generatorarrow_forwardCreate downloadable QR codes for links and text.

Developer essentials

Fast browser-based coding utilities

Base64 Encoderarrow_forwardEncode and decode Unicode text safely.Regex Testerarrow_forwardTest patterns and inspect matches with sample text.Password Generatorarrow_forwardGenerate strong passwords with clear rule controls.

Guides to start with

Read a quick explanation first, then open the matching calculator when you need a result.

7 min read2026-07-17

20ft, 40ft or 40HC: which container fits your cargo?

Nominal cubic capacity alone can point to the wrong container. A realistic choice also checks internal dimensions, carton orientation, pallets, stack height, payload and door clearance.

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7 min read2026-07-17

Air vs ocean freight: compare more than the rate card

Air is fast but volumetric weight can be high. Ocean is cheaper per unit but adds lead time and inventory financing. Compare total delivered cost and the cost of delay.

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6 min read2026-07-17

CBM and volumetric weight without the confusion

CBM measures occupied space. Volumetric weight converts that space into a billing weight. Air and ocean freight use different rules, so the same shipment can have different chargeable bases.

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8 min read2026-07-17

Incoterms 2020: cost and risk do not always transfer together

Incoterms are not merely freight abbreviations. They define delivery, risk, transport, insurance and customs tasks, but they do not by themselves set title transfer or payment terms.

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7 min read2026-07-17

LCL or FCL: where is the real break-even point?

There is no universal CBM threshold. LCL adds CFS, minimum and per-RT charges, while FCL adds container, terminal and inland costs. Compare both on the same all-in landed basis.

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6 min read2026-07-17

Palletized or floor-loaded: which plan is better?

Floor loading may increase carton count, but handling time and damage exposure can rise. Pallets consume space while making forklift handling, counting and storage much easier.

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5 min read2026-04-08

How to Calculate Compound Interest

Compound interest means each period earns on both the original principal and the interest already added. The base formula is simple, but recurring deposits are much easier with a calculator.

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4 min read2026-04-08

How to Calculate BMI Manually

BMI is a fast screening ratio based on weight and height. The arithmetic is easy, but the result should be interpreted with other health markers rather than alone.

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4 min read2026-04-08

How to Calculate Tip at a Restaurant

Restaurant tipping is usually just a percentage of the bill. Once you know the tip amount, it is easy to find the final total and split it between multiple people.

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