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Free Online Converters

10 converters for units, currencies, time zones, colours and sizing. No sign-up — instant results.

10 convertersLive currency rates⚡ instant

Our converter collection handles every common unit conversion across physical measurements, currencies, temperatures, time zones, number systems and clothing sizes. All conversions use accurate, up-to-date conversion factors.

Unit & Measurement Converters

The Unit Converter covers length (metres, feet, miles, kilometres), weight (kilograms, pounds, stones, ounces), volume (litres, gallons, fluid ounces) and area. The Temperature Converter handles Celsius, Fahrenheit and Kelvin with common reference points shown. Shoe Size and Ring Size converters handle UK, EU, US and Japanese sizing systems.

Time & Number Converters

The Time Converter converts between seconds, minutes, hours, days, weeks and years. The Time Zone Converter handles all global time zones with daylight saving correctly applied. The Roman Numeral Converter handles conversion in both directions up to 3,999. Number to Words converts any number into written English for cheques and legal documents.

All Free Converters

10 converters for units, currencies, time, colour codes and sizing. All free, instant, no sign-up.

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Unit Converter

Length, weight, volume, area and temperature

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Temperature Converter

Celsius, Fahrenheit and Kelvin instantly

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Currency Converter

Live exchange rates between 12 major currencies

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Time Converter

Hours, minutes, seconds and more

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Timezone Converter

Convert any time between world timezones

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Roman Numeral Converter

Convert numbers to and from Roman numerals

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Number to Words

Write any number out in full words

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Colour Converter

HEX, RGB and HSL colour codes

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Shoe Size Converter

UK, EU, US and cm sizes

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Ring Size Guide

Find or convert your ring size

Free Online Converters — Instant Unit Conversion

TooLegend's free converters handle everything from length and weight to currencies, time zones and colour codes. Each converter gives instant results with no sign-up, no ads between inputs and outputs, and no character limits.

Which converter do you need?

Unit converter — length (metres, miles, inches), weight (kg, lbs, stone), volume and area
Currency converter — live exchange rates for GBP, USD, EUR, JPY and 8 more major currencies
Time tools — convert between time units or find what time it is in any world timezone
Colour converter — switch between HEX (#ffffff), RGB (255,255,255) and HSL colour formats
Size guides — shoe sizes across UK, EU, US and cm; ring sizes for any system

Frequently Asked Questions

How accurate is the currency converter?

Currency rates update daily from open exchange rate data. For live trading rates, always check your bank or exchange provider.

Can I convert multiple units at once?

The unit converter shows results for several related units at the same time — so if you enter 1 mile you also see the km, metres and feet equivalents.

Does the timezone converter handle daylight saving time?

Yes — the timezone converter accounts for daylight saving time (BST, EDT etc) based on the current date.

What colour formats does the colour converter support?

HEX (#rrggbb), RGB (red, green, blue 0–255) and HSL (hue, saturation, lightness). All three formats are shown simultaneously.