Density (ρ) is mass per unit volume, typically in kg/m³ or g/cm³. It describes how tightly matter is packed. Steel ≈ 7850 kg/m³, aluminum ≈ 2700 kg/m³, water = 1000 kg/m³.

Zichlik va hajmdan massani qanday hisoblayman?

Mass = Density × Volume (m = ρ × V). For example: a 0.5 m³ block of steel (7850 kg/m³) weighs 7850 × 0.5 = 3925 kg.

O'lchamlardan hajmni qanday hisoblayman?

Cube: V=a³. Cylinder: V=π×r²×h. Sphere: V=4/3×π×r³. Hollow cylinder: V=π×(R²-r²)×h. Cone: V=1/3×π×r²×h.

Suzish kuchi (arximedov kuch) nima?

Buoyancy force equals the weight of displaced fluid: F_b = ρ_fluid × V × g. An object floats if its density is less than the fluid density. Steel sinks in water (7850 > 1000 kg/m³).

Nisbiy zichlik (solishtirma og'irlik) nima?

Specific gravity (SG) is the ratio of a material's density to water density (1000 kg/m³). It is dimensionless. Steel SG ≈ 7.85, aluminum SG ≈ 2.70, titanium SG ≈ 4.51.

Muhandislik uchun bepul vosita

Zichlik / Massa / Hajm kalkulyatori

Zichlik, massa yoki hajmdan ixtiyoriy birini hisoblang. 30+ material sozlamalari, shakl asosida hajm kalkulyatori, oshish tekshiruvi va ko'p birlikli natija.

ρ = m / V 30+ Materials Shape Volume Buoyancy

Solve For

Material oldindan sozlamasi

Density ρ (kg/m³)

Shakl bo'yicha hajm

Mass (kg)

Volume (m³)

Uzunlik / a tomoni (mm)

Width b (mm)

Balandlik / h uzunligi (mm)

Outer Radius R (mm)

Inner Radius r (mm, faqat ichki bo'sh qismlar uchun)

Quick presets

Results

Density ρ

—

Mass m

—

Volume V

—

Og'irlik (bir nechta o'lchov birligi)

—

Solishtirma og'irlik

—

Suvdagi suzish kuchi (Arximed kuchi)

—

Asosiy formulalar

Shakllar hajmi formulalari

Buoyancy

An object floats if ρ_object < ρ_fluid. The net submerged weight = m×g − ρ_fluid×V×g.

Amaliy Misol

Misol — Po'lat ichki bo'sh silindr (quvur)

Given: OD=100mm, ID=80mm, Length=500mm, ρ=7850 kg/m³

V = π×(50²−40²)×500 = π×(2500−1600)×500 = 1,413,717 mm³ = 0.001414 m³

m = 7850 × 0.001414 = 11.1 kg = 24.4 lb

Weight in water: F_b = 1000 × 0.001414 × 9.81 = 13.87 N → submerged weight = 95.0 N

Materiallar zichligi ma'lumotlar bazasi

Material	kg/m³	g/cm³	lb/ft³
Carbon Steel	7,850	7.85	490
Stainless 304	7,930	7.93	495
Stainless 316	8,000	8.00	499
Cho'yan (Kulrang)	7,200	7.20	449
Aluminum 6061	2,700	2.70	169
Aluminum 7075	2,810	2.81	175
Copper	8,900	8.90	556
Brass	8,500	8.50	531
Bronze	8,800	8.80	549
Titanium	4,510	4.51	282
Magnesium	1,740	1.74	109
Lead	11,340	11.34	708
Nickel	8,908	8.91	556
Gold	19,300	19.30	1,205
HDPE	920	0.92	57
PVC	1,400	1.40	87
PTFE (Teflon)	2,200	2.20	137
Concrete	2,500	2.50	156
Glass	2,200	2.20	137
Oak Wood	600	0.60	37
Water (20°C)	1,000	1.00	62.4
Seawater	1,025	1.025	64.0
Diesel Fuel	870	0.87	54.3