standard b4ms

    $0.1660/hr

    ~$121.18/month on-demand in eastus

    The standard b4ms is a General purpose instance with 4 vCPUs and 16 GiB of memory, starting at $0.166 per hour.

    Last updated: Jan 14, 2026, 12:11 PM UTC

    Pricing varies by operating system

    Pricing Options

    Savings Plan

    Flexible commitment pricing

    1 Year
    $0.1118/hr
    ~$81.61/mo
    Save 33%
    3 Year
    $0.0748/hr
    ~$54.60/mo
    Save 55%

    Reserved

    Region & instance locked

    1 Year
    $0.0974/hr
    ~$71.08/mo
    Save 41%

    Spot Pricing

    Up to 90% savings - flexible workloads

    No spot pricing data available

    B-series

    Switch between sizes in eastus

    SizevCPUMem
    standard b1ls10
    standard b1ms12
    standard b1s11
    standard b2als v224
    standard b2as v227
    standard b2ats v221
    standard b2ls v224
    standard b2ms27
    standard b2pls v224
    standard b2ps v227
    standard b2pts v221
    standard b2s24
    standard b2s v227
    standard b2ts v221
    standard b4als v247
    standard b4as v2415
    standard b4ls v247
    standard b4ms415
    standard b4pls v247
    standard b4ps v2415
    standard b4s v2415
    standard b8als v2815
    standard b8as v2830
    standard b8ls v2815
    standard b8ms830
    standard b8pls v2815
    standard b8ps v2830
    standard b8s v2830
    standard b12ms1245
    standard b16als v21630
    standard b16as v21660
    standard b16ls v21630
    standard b16ms1660
    standard b16pls v21630
    standard b16ps v21660
    standard b16s v21660
    standard b20ms2075
    standard b32als v23260
    standard b32as v232119
    standard b32ls v23260
    standard b32s v232119

    Instance Specifications

    Detailed hardware and capabilities for standard b4ms

    Processor

    Architecturex64
    vCPUs4
    vCPUs per Core1
    Memory16 GiB
    Memory per vCPU4.00 GiB

    Network

    Accelerated Networking
    RDMA
    IPv6

    Storage

    Temp Storage1023 GB
    NVMe Drive
    Max Data Disks8
    Cached IOPS3,600
    Cached Throughput34 MBps
    Uncached IOPS2,880
    Uncached Throughput35 MBps
    Premium Storage
    Ultra SSD

    Security & Capabilities

    GenerationCurrent
    Confidential Computing
    Trusted Launch
    Encryption at Host
    Spot/Low Priority
    Memory-Preserving Maint.
    Capacity Reservation
    Burstable
    Hyper-V GenerationsV1,V2

    Regional Pricing Comparison

    Compare standard b4ms (Linux) pricing across all regions - sorted by cost

    Current region (eastus)Other regions
    💡 Click any bar to open that region in a new tab