# SI and metric prefix converter

> Convert between SI metric prefixes such as giga, mega, kilo, milli, micro and nano, from quecto (10⁻³⁰) to quetta (10³⁰), including the 2022 additions.

परस्परसंवादी आवृत्ती: https://www.calcopenly.com/mr/conversion/si-prefix-converter
विषय: एकक रूपांतरक

An SI prefix multiplies a unit by a power of ten: kilo is 10³, mega 10⁶, milli 10⁻³ and nano 10⁻⁹. Converting between two prefixes multiplies the value by 10 raised to the difference of their exponents, which moves the decimal point without changing any digits. The converter covers all 24 SI prefixes, from quecto (10⁻³⁰) to quetta (10³⁰).

Engineers and students use it to move between scales of one unit. The default turns the 2.4 GHz Wi-Fi band into 2,400 MHz, a shift of three powers of ten. The unit symbol field only labels the result, so the same conversion works for metres, grams, hertz or watts.

Two BIPM rules apply to every prefix: prefixes are never combined (write nm, not mµm), and because the kilogram already carries one, prefixes attach to the gram: 1 mg, not 1 µkg.

## इनपुट

- **मूल्य**
- **पासून** (पर्याय: quetta (Q, 10³⁰), ronna (R, 10²⁷), yotta (Y, 10²⁴), zetta (Z, 10²¹), exa (E, 10¹⁸), peta (P, 10¹⁵), tera (T, 10¹²), giga (G, 10⁹), mega (M, 10⁶), kilo (k, 10³), hecto (h, 10²), deca (da, 10¹), none (10⁰), deci (d, 10⁻¹), centi (c, 10⁻²), milli (m, 10⁻³), micro (µ, 10⁻⁶), nano (n, 10⁻⁹), pico (p, 10⁻¹²), femto (f, 10⁻¹⁵), atto (a, 10⁻¹⁸), zepto (z, 10⁻²¹), yocto (y, 10⁻²⁴), ronto (r, 10⁻²⁷), quecto (q, 10⁻³⁰))
- **मध्ये** (पर्याय: quetta (Q, 10³⁰), ronna (R, 10²⁷), yotta (Y, 10²⁴), zetta (Z, 10²¹), exa (E, 10¹⁸), peta (P, 10¹⁵), tera (T, 10¹²), giga (G, 10⁹), mega (M, 10⁶), kilo (k, 10³), hecto (h, 10²), deca (da, 10¹), none (10⁰), deci (d, 10⁻¹), centi (c, 10⁻²), milli (m, 10⁻³), micro (µ, 10⁻⁶), nano (n, 10⁻⁹), pico (p, 10⁻¹²), femto (f, 10⁻¹⁵), atto (a, 10⁻¹⁸), zepto (z, 10⁻²¹), yocto (y, 10⁻²⁴), ronto (r, 10⁻²⁷), quecto (q, 10⁻³⁰))
- **Unit symbol**: Only used for labels, e.g. m, g, Hz, W

## निकाल

- रूपांतरित मूल्य — मुख्य निकाल
- रूपांतरण
- Shift in powers of ten

## सूत्र

$$
x_{\text{to}} = x_{\text{from}} \times 10^{\,e_{\text{from}} - e_{\text{to}}}
$$

## सोडवलेली उदाहरणे

### 2.4 GHz in MHz

- मूल्य: 2.4
- पासून: giga (G, 10⁹)
- मध्ये: mega (M, 10⁶)
- Unit symbol: Hz
- **रूपांतरित मूल्य: 2,400 MHz**
- **रूपांतरण: 2.4 GHz = 2,400 MHz**
- **Shift in powers of ten: 3**
- पडताळणीचा स्रोत: giga = 10⁹, mega = 10⁶ (SI Brochure Table 7): 2.4 × 10³

### 1 km in m

- मूल्य: 1
- पासून: kilo (k, 10³)
- मध्ये: none (10⁰)
- Unit symbol: m
- **रूपांतरित मूल्य: 1,000 m**
- पडताळणीचा स्रोत: kilo = 10³

### 1 quetta in yotta (2022 prefix)

- मूल्य: 1
- पासून: quetta (Q, 10³⁰)
- मध्ये: yotta (Y, 10²⁴)
- Unit symbol: g
- **रूपांतरित मूल्य: 1,000,000 Yg**
- **Shift in powers of ten: 6**
- पडताळणीचा स्रोत: quetta = 10³⁰ (CGPM 2022), yotta = 10²⁴

### Smallest to largest: quecto to quetta

- मूल्य: 1
- पासून: quecto (q, 10⁻³⁰)
- मध्ये: quetta (Q, 10³⁰)
- Unit symbol: g
- **Shift in powers of ten: -60**
- **रूपांतरित मूल्य: 1 × 10⁻⁶⁰ Qg**
- पडताळणीचा स्रोत: 10⁻³⁰ / 10³⁰ = 10⁻⁶⁰

### 5 µs in ns

- मूल्य: 5
- पासून: micro (µ, 10⁻⁶)
- मध्ये: nano (n, 10⁻⁹)
- Unit symbol: s
- **रूपांतरित मूल्य: 5,000 ns**
- पडताळणीचा स्रोत: micro = 10⁻⁶, nano = 10⁻⁹: 5 × 10³

## प्रश्न

### What are the SI prefixes in order?

There are 24. From largest: quetta (Q, 10³⁰), ronna (R, 10²⁷), yotta (Y, 10²⁴), zetta (Z), exa (E), peta (P), tera (T), giga (G), mega (M), kilo (k, 10³), hecto (h, 10²) and deca (da, 10¹). Then the submultiples: deci (d), centi (c), milli (m, 10⁻³), micro (µ), nano (n), pico (p), femto (f), atto (a), zepto (z), yocto (y), ronto (r) and quecto (q, 10⁻³⁰).

### What are the newest SI prefixes?

Ronna (R, 10²⁷), quetta (Q, 10³⁰), ronto (r, 10⁻²⁷) and quecto (q, 10⁻³⁰), adopted by the 27th General Conference on Weights and Measures (CGPM) in November 2022. They were the first additions since zetta, yotta, zepto and yocto in 1991. On the new scale the Earth's mass, about 5.97 × 10²⁴ kg, is roughly 6 ronnagrams.

### How do I convert between metric prefixes?

Subtract the exponents and move the decimal point that many places. From giga (10⁹) to mega (10⁶) is 9 − 6 = 3 places to the right, so 2.4 GHz = 2,400 MHz; from micro (10⁻⁶) to nano (10⁻⁹) is also 3 places, so 5 µs = 5,000 ns. Moving to a larger prefix shifts the point left: 1,500 m = 1.5 km.

### Why is kilo a lowercase k but mega an uppercase M?

The SI writes the symbols for multiples from mega (M, 10⁶) upward in capitals, while kilo (k), hecto (h), deca (da) and every submultiple are lowercase. The case changes the value: 1 MW (megawatt) is 10⁹ times 1 mW (milliwatt). Writing K for kilo is wrong in the SI, because K is the symbol for the kelvin.

### Does kilo mean 1,000 or 1,024 in computing?

In the SI, kilo always means exactly 1,000, so 1 kbit = 1,000 bits and 1 GB = 10⁹ bytes (NIST). For powers of two the IEC approved binary prefixes in December 1998: 1 KiB (kibibyte) = 1,024 bytes and 1 GiB = 2³⁰ = 1,073,741,824 bytes. The gap grows with size, which is why a 1 TB drive shows about 931 GiB.

### “SI and metric prefix converter” किती अचूक आहे?

अचूकता तुमच्या इनपुटवर आणि पद्धतीच्या गृहीतकांवर अवलंबून असते. दशांश गणना 50 सार्थ अंक वापरते, पण अंदाज, संख्यात्मक पद्धती आणि मूळ डेटा कमी अचूक असू शकतात; दाखवलेल्या मूल्यांचे पूर्णांकन केल्याने या मर्यादा दूर होत नाहीत. स्वतंत्र स्रोतांतील सोडवलेल्या उदाहरणांशी पडताळणी: ५. उदाहरणार्थ, “2.4 GHz in MHz” ची पडताळणी giga = 10⁹, mega = 10⁶ (SI Brochure Table 7): 2.4 × 10³ याच्याशी केली आहे.

### या पद्धतीचा स्रोत कोणता?

BIPM — The International System of Units (SI Brochure, 9th ed.), Table 7: SI prefixes; BIPM — CGPM 2022 Resolution 3: ronna, quetta, ronto, quecto.

## स्रोत

- [BIPM — The International System of Units (SI Brochure, 9th ed.), Table 7: SI prefixes](https://www.bipm.org/en/publications/si-brochure)
- [BIPM — CGPM 2022 Resolution 3: ronna, quetta, ronto, quecto](https://www.bipm.org/en/cgpm-2022/resolution-3)